This is topic My Very Own Thread About Evolution in forum Books, Films, Food and Culture at Hatrack River Forum.


To visit this topic, use this URL:
http://www.hatrack.com/ubb/main/ultimatebb.php?ubb=get_topic;f=2;t=051083

Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
Originally posted by MightyCow:
Humans need to breathe air to survive, therefore, it is only humans who can successfully breathe who are able to survive.

Well, obviously that's a tautology, and therefore untrue and completely worthless in understanding human biology or survival. [Roll Eyes]

I said earlier in the thread that I had read somewhere that sometimes something is a tautology because it is self-evidently true. This would be an example.

Natural selection is a tautology because it is self-evidently true. It also, by virtue of being a tautology, contains exactly *zero* explanatory power.

Now I have to go back to that other accursed thread and find what MattP said about refuting my claim that Natural Selection is a tautology.

[edit] Original thread: False definitions by a claimant of "true science" Skip to the last page if you are curious as to why I ran away from there.

[ December 10, 2007, 05:57 PM: Message edited by: Reshpeckobiggle ]
 
Posted by King of Men (Member # 6684) on :
 
What if they gave an evolution thread, and nobody came?
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
That's what I'm afraid of. Here's to hoping!

I found it Matt. You linked to a blog. I think I got the jist of what the blog was saying without having gone to the link. I still don't see how admitting Natural Selection is a tautology changes the fact that simply stating the obvious twice in one sentence gives it the power to explain anything other than itself.
 
Posted by Paul Goldner (Member # 1910) on :
 
"I had read somewhere that sometimes something is a tautology because it is self-evidently true."

Thats not what a tautology is. A tautology is a propositional formula that is true under any posible truth value of the variables.

Something that is self-evidently true is... not always true. It is possible it could be false. It is possible humans would not need to breath oxygen. It HAPPENS to be true (and is, incidentally, not self-evidentally true. Nor is natural selection. Otherwise, every person who ever lived would recognize the truth value of the proposition).

"Natural selection is a tautology because it is self-evidently true. It also, by virtue of being a tautology, contains exactly *zero* explanatory power."

Even assuming your definition of tautology were correct (its not), things that are self-evidentally true DO have explanatory power. Lets take the oxygen example. Even if its self-evidentally true, knowing that people need oxygen to live helps us understand that aperson can die from lack of oxygen. "That person died because the flow of oxygen to his lungs was cut off." See? Explanatory power.
 
Posted by King of Men (Member # 6684) on :
 
All we're sayin' is, give shuttin' up a chance!
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
You may be missing the point. I find it equally likely that I'm the one missing the point. Let me try it this way:

Natural selection is true based upon it's own premises, because one premise implies the other. The definition of "the fittest" as pertains to Evolutionary theory is the the species that is most likely to reproduce. Therefore, if the species survives, it is fittest, and it is fittest if it survives. I should have said that the principle has zero explanatory power beyond an explanation of itself. I suppose it could be rendered false if it were determined that the fittest creatures are not necessarily the ones most likely to survive and reproduce, bot a lot of good that would do Evolutionary theory.

The tautology about oxygen is just a useless. "the person died because the flow of oxygen to his lings was cut off" actually does not have explanatory power. It doesn't explain why humans need oxygen, or why the oxygen source was cut off. You actually need to have some sort of explanation about how oxygen is used by the body, and what happens when it is cut off. That tautology explains why the person died just as accurately as Natural Selection explains how we evolved, which is to say, it doesn't.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
KoM, I started this thread because of all the non-contributors on a different thread, and I asked that people who do not wish to engage in an honest debate please stay away.
 
Posted by Paul Goldner (Member # 1910) on :
 
I was curious about something. Now I'm not... you don't know what you're talking about, and you don't understand your terms, and not only that, you don't understand that you don't understand what you are talking about.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
OK, how so?
 
Posted by MattP (Member # 10495) on :
 
quote:
Therefore, if the species survives, it is fittest, and it is fittest if it survives.
Natural selection ALSO says that the individuals that survive will pass on their genes to their offspring who will also be subject to the same selective pressures. Over time this process will tend to increase the representation of the "more fit" genes in the population.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
That's not adding anything to the equation, Matt. Unless you are criticizing my use of the term species. The individual belongs to a species. The species is more likely to survive if the individual members of its group are sufficiently fit to pass on their genetic information. Their fitness is rated according to how well they pass on their genes.

[Edit} I didn't really answer your question. Ok, if an individual within a species is more fit than the others within the species, then its genes will have greater representation within the species. Now we're getting somewhere.
 
Posted by swbarnes2 (Member # 10225) on :
 
quote:
Originally posted by Reshpeckobiggle:
Natural selection is true based upon it's own premises, because one premise implies the other.

No, it doesn't. If we always observed that all varaints in a population always survived equally well, then we would not conclude natural selection.

But we observe that this is not the case. We observe that in the presense of antibodies, variants which are resistant survive better.

quote:
The definition of "the fittest" as pertains to Evolutionary theory is the the species that is most likely to reproduce.
You don't understand how evolution works within a populaiton of the same species. No one thinks that you have a handle on what it has to say about competition between species.

Stick to individuals within a population first, then we can move into bigger things.

quote:
I suppose it could be rendered false if it were determined that the fittest creatures are not necessarily the ones most likely to survive and reproduce, bot a lot of good that would do Evolutionary theory.
The fittest memebrs of a population are by definition the ones that reproduce the best. If certain variants don't reproduce any better than others, than we don't call them the fittest.
 
Posted by MattP (Member # 10495) on :
 
quote:
That's not adding anything to the equation, Matt.
Sure it does. Your proposed tautological statement of natural selection says nothing about the transmission of genes. When you include enough information to fully describe the theory, it becomes much harder to formulate a tautological statement of the theory. It's not impossible though, because you can describe any theory as a tautology if you include the observations and inferences of the theory in the statement.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
"You don't understand how evolution works within a populaiton of the same species. No one thinks that you have a handle on what it has to say about competition between species."

This is why I'm ignoring you. Don't bother.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Matt, when you say transmission of genes, do you mean reproduction?
 
Posted by Paul Goldner (Member # 1910) on :
 
Resh-
You've proved over and over again you have no clue. When you say "Ok. Dozens of people are telling me i don't know what I'm talking about. Maybe i should listen to what they are saying for a little while," then you're worth discussing evolutin with.

But, when everyone is telling you that you don't understand evolution, and has been telling you the same thing for a year, and won't respond to their questions or statements, all it says is you have a closed mind and are not willing to learn what evolution really is.
 
Posted by MattP (Member # 10495) on :
 
Reproduction is the mechanism by which genes are transmitted. The transmission (and preservation) of genes is a necessary component. "The most fit are the most fit" doesn't supply any of that information. It doesn't tell us why that is important or what the implications are. Without a mention heritability of traits, it's a meaningless statement.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
OK, Paul. You're telling me that I should just take at their word all the dozens of people who have repeatedly shown that they think understanding the theory of evolution implies belief in the same, and conversely, disbelief in the their implies ignorance of its concepts and what it says. I am wrong, I am ignorant, and as far as I can tell you know this because I don't believe the theory.
 
Posted by swbarnes2 (Member # 10225) on :
 
quote:
Originally posted by Reshpeckobiggle: The individual belongs to a species. The species is more likely to survive if the individual members of its group are sufficiently fit to pass on their genetic information.
Sigh.

As those benefical alleles start to spread around the population, more and more benefical mutations build on those. Eventually, the popualtion becomes differnt form its parent popuation, to the point where they aren't the same species.

So it's silly to say the the species will survive better if its descendants aren't the same species!

quote:
[Edit} I didn't really answer your question. Ok, if an individual within a species is more fit than the others within the species, then its genes will have greater representation within the species. Now we're getting somewhere. [/qb]
No. We conclude that a particular allele is probably making its bearers more fit if we observe that the allele is growing in frequency in the population. (Neutral alleles can grow in popualtions due to random chance, or being physically linked to benefical alleles)

Observation, then conclusion. That's how science works.

Not "We decide it's fit, and then we look for frequency data which confirms this". Or "We decide that there is a direct line between pigs and dogs, and then crow about how science can't find it, so science must be wrong".
 
Posted by King of Men (Member # 6684) on :
 
Hell no, we won't post!
 
Posted by Paul Goldner (Member # 1910) on :
 
"OK, Paul. You're telling me that I should just take at their word all the dozens of people who have repeatedly shown that they think understanding the theory of evolution implies belief in the same, and conversely, disbelief in the their implies ignorance of its concepts and what it says. I am wrong, I am ignorant, and as far as I can tell you know this because I don't believe the theory."

No, Resh. I am telling you that the first thing you need to do is listen to explanations about why your understanding of evolution is wrong, and read some of the links that people have been providing you, so that you come to an understanding of what evolution is. Currently, you do not have that understanding.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Would you please leave me alone? Every post of yours has some snide remark directed at me, and I started this thread to avoid that. Do I have to whistle you?

Matt, it is a meaningless statement. I'm asking for something that goes beyond that meaningless statement. This would have to be something like a specific increased function that gives an advantage to a species, or an individual [edit] within the [/end edit] species. The problem is that the only criteria by which we judge something to be advantageous is the degree of increased reproductive capability, which just brings us full circle back into the mire of the tautology.

[edit] I didn't get to that mistake above right away because I was distracted by some mal-intentioned posters. Would you all please go away if you have nothing constructive to add?
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Paul, the main thrust of the arguments about how I do not understand Evolution usually turn on the fact that I don't believe it to be true. I am trying to have a conversation with people (like Matt) who want to discuss the theory on it's merits. You're free to join in, but stop telling me I'm wrong because I'm wrong.
 
Posted by King of Men (Member # 6684) on :
 
This thread is a quagmire. I think we should pull out all our posters from it right now.
 
Posted by Threads (Member # 10863) on :
 
Resh, you haven't actually defined natural selection yet. Here's wikipedia's definition:

quote:
Natural selection is the process by which favorable traits that are heritable become more common in successive generations of a population of reproducing organisms, and unfavorable traits that are heritable become less common.
Natural selection explains the progression of the allele pools of populations. Individuals which are more successful will have a larger influence on the allele pool than individuals which are less successful. Over time, alleles that grant the best chance of reproduction will become more common in the allele pool of the population.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Isn't that basically what I've been saying, Threads?
"Individuals which are more successful will have a larger influence on the allele pool than individuals which are less successful. Over time, alleles that grant the best chance of reproduction will become more common in the allele pool of the population."

Is there a major difference between saying that and saying: " The species is more likely to survive if the individual members of its group are sufficiently fit to pass on their genetic information. Their fitness is rated according to how well they pass on their genes... if an individual within a species is more fit than the others within the species, then its genes will have greater representation within the species.
 
Posted by Threads (Member # 10863) on :
 
quote:
Originally posted by Reshpeckobiggle:
This would have to be something like a specific increased function that gives an advantage to a species, or an individual [edit] within the [/end edit] species.

Natural selection is the fitness function. Without natural selection there would be no way for a species to adapt to its environment. The random mutations introduced in one generation would have no influence on the next. The genetic makeup of the population would stay virtually identical. Natural selection is function that permits the adaptation of species. The random mutations in one generation may have a decidedly non-random impact on the reproductive capabilities of an individual. This non-randomness allows beneficial mutations to spread throughout the population over time because the individuals with those mutations will reproduce more often than those without them. Without this fitness function, species could not adapt at all. Darwin's finches would never exist.
 
Posted by swbarnes2 (Member # 10225) on :
 
quote:
Originally posted by Reshpeckobiggle:
Paul, the main thrust of the arguments about how I do not understand Evolution usually turn on the fact that I don't believe it to be true.

No, it doesn't. You aren't such a victim as you keep making yourself out to be.

No one who thinks that evolution predicts a direct dog-to-pig transitional orgainsm understands the theory of evolution.

But really, you could easily prove me wrong. You could prove to everyone on the board that you understand evolution by telling everyone what you think that theory of evolution actually says. And what the scientific community believes to be the evidence in favor of it

But you won't.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Holy cow, this may be where the disconnect lies! Natural selection doesn't simply work on the mutations, it works on the variation within a species. The finches have encoded into their DNA a certain amount of variability in the size of their beaks. No mutations are needed. If a population of finches just keeps on reproducing with no variation in the environment, you'll get finches with a mean and median beak size, and then a few with beaks at the extreme ends of the size spectrum. All this without a single mutation necessary.
 
Posted by Threads (Member # 10863) on :
 
quote:
Originally posted by Reshpeckobiggle:
Is there a major difference between saying that and saying: " The species is more likely to survive if the individual members of its group are sufficiently fit to pass on their genetic information. Their fitness is rated according to how well they pass on their genes... if an individual within a species is more fit than the others within the species, then its genes will have greater representation within the species.

I don't see a circularity. I see two ways of saying the same thing. Natural selection is pretty self-explanatory. All it requires to work is that different individuals in a population have different chances of reproduction (in this case caused by genetic differences between individuals). Those different chances of reproduction are what lead to changes in the overall genetic composition of a population.
 
Posted by Threads (Member # 10863) on :
 
quote:
Originally posted by Reshpeckobiggle:
If a population of finches just keeps on reproducing with no variation in the environment, you'll get finches with a mean and median beak size, and then a few with beaks at the extreme ends of the size spectrum. All this without a single mutation necessary.

And if the type of seeds change so as to favor large beaks then the large beak finches will eventually dominate the population (and become the new "norm"). That's natural selection.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Ok, that is the postulation that must work in tandem with natural selection to produce change. You need mutations that actually result in structural differences in phenotypes. Natural selection alone has been shown to have conservative tendencies.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
And if the type of seeds change so as to favor large beaks then the large beak finches will eventually dominate the population (and become the new "norm"). That's natural selection.
Absolutely. Verifiable, acceptable, no argument there. But as an indication of natural selection's conservative tendencies, when the environment changed back, the average beak size returned to normal (this actually happened.)
 
Posted by swbarnes2 (Member # 10225) on :
 
quote:
Originally posted by Reshpeckobiggle:
Isn't that basically what I've been saying, Threads?
"Individuals which are more successful will have a larger influence on the allele pool than individuals which are less successful. Over time, alleles that grant the best chance of reproduction will become more common in the allele pool of the population."

Is there a major difference between saying that and saying: " The species is more likely to survive if the individual members of its group are sufficiently fit to pass on their genetic information. Their fitness is rated according to how well they pass on their genes... if an individual within a species is more fit than the others within the species, then its genes will have greater representation within the species.

Yes, there is a difference. The top quote is only talking about individuals changing the allele pool of a population, the second is talking about the survival of species.

The whole point of evolution is that populations can change so much that eventually, they are not the same species as their ancestors.

If a sub-population of, say, fish, evolves to live in deeper waters than the other members of the population, then eventually those deeper fish will become a new species. And if, say, global warming causes the sea temp to rise, which kills the shallow fish, then the deeper species will survive, and the shallow one won't. Did the fact that some shallow living fish evolved to live in deeper waters help the orignal "species"? No. That species died. That a closely related species survived didn't help the shallow fish.
 
Posted by swbarnes2 (Member # 10225) on :
 
quote:
Originally posted by Reshpeckobiggle:
[QB] Holy cow, this may be where the disconnect lies! Natural selection doesn't simply work on the mutations, it works on the variation within a species. The finches have encoded into their DNA a certain amount of variability in the size of their beaks.[QB]

Really, why don't you show us?

Mice come in lots of different colors: black, white, brown...etc.

Why don't you grab the C57L/B6 mouse data, and shows us where in their genome all that information for all the differces in fur color is stored.

Go on, it's all publically available:

www.ensembl.org
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Ok, swbarnes, this is appropriate. I already whistled you, but all I was hoping for is just a suggestion that we talk about the theory and not make things personal.

You are describing a subtle change where one type of fish very gradually evolves into a very similar fish with different capabilities and strengths. That is Micromutation, and something that I have repeatedly said I don't have a problem with. It may be considered a different species depending on what changes occur and even how species is being defined at the time.

When I say that there is no evidence for Evolution (notice the capital "e"), what I mean is that Isaying that this type of micromutation can conceivably account for the eventual changes of fish into amphibians, I do not think that is evidence.

[edit] Nevermind. I gave you a chance. I'm ignoring your posts from now on.
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by Reshpeckobiggle:
Holy cow, this may be where the disconnect lies! Natural selection doesn't simply work on the mutations, it works on the variation within a species.

No kidding. You're telling me you didn't understand that? No wonder you're confused- that's the basic postulate upon which the theory rests!

Natural selection operates on variation in phenotype.

Variation in phenotype can be generated by variation in genotype.

Variation in genotype is generated by mutation.

If you accept that these three things are true, then evolution is not only likely to happen, it's inevitable.

quote:
The finches have encoded into their DNA a certain amount of variability in the size of their beaks. No mutations are needed.
Where do you think that variability came from in the first place? Hint: it starts with "M" and rhymes with "plantation."

Of course, you can also generate novel phenotypes by recombination, but to get the variation in alleles necessary for recombination to have an observable effect in the first place, you need mutation to occur first.

quote:
If a population of finches just keeps on reproducing with no variation in the environment, you'll get finches with a mean and median beak size, and then a few with beaks at the extreme ends of the size spectrum. All this without a single mutation necessary. [/QB]
Sort of. If certain phenotype(s) are advantageous in your hypothetical constant environment, then they will tend to sweep to fixation (that is, they will eventually dominate the population until they are the only alleles present). How long fixation takes depends on how much more fitness they confer relative to the other alleles in the population.

But again, you ain't gonna get any of that variation in the first place without mutation. A mutation-free population is a population of clones.

quote:
Absolutely. Verifiable, acceptable, no argument there. But as an indication of natural selection's conservative tendencies, when the environment changed back, the average beak size returned to normal (this actually happened.)
Yes, which only goes to show that evolution doesn't follow some grand master plan- that what is "better" at some particular place and at some point in time won't necessarily be "better" anywhere or anywhen else. It also doesn't mean that evolution will inevitably cause populations to return to some ancestral state, if that is what you're implying. Natural selection has no memory- it only acts on the here and now.
 
Posted by Ron Lambert (Member # 2872) on :
 
I applaud your efforts, Reshpeckobiggle. But I think you are probably wasting your time. The pro-evolutionist lobby here is utterly wedded to the notion that only someone who is ignorant could refuse to accept evolution. When someone comes along and shows that he is not at all ignorant, and knows all the facts that they do, and still does not accept evolution, that really gores their ox. When you cite facts that are clearly inconvenient for their cherished theory, they can get mean, nasty. Rabid. And they accuse you of doing all the screaming and yelling, when it is really them. At least, that has been my experience with them, and all their ilk, for forty years. Good luck.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Ok, Tarrsk, lets tackle this. Are you saying that any change in DNA between the parent and offspring is a mutation?
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by Reshpeckobiggle:
You are describing a subtle change where one type of fish very gradually evolves into a very similar fish with different capabilities and strengths. That is Micromutation, and something that I have repeatedly said I don't have a problem with. It may be considered a different species depending on what changes occur and even how species is being defined at the time.

"Macroevolution" is just the logical consequence of "microevolution" over a very long period of time. Lots of things can lead two formerly interbreeding populations to stop interbreeding, and once they stop, they aren't likely to start again. Eventually, some genetic change will occur that eliminates inter-population fertility altogether, such as a chromosome duplication or fusion. Yes, contrary to your preconceived notions, there are events that can very rapidly lead to speciation. Of course, when I say "very rapidly," I'm still talking in the order of thousands of years. But it's quicker than millions.

quote:
When I say that there is no evidence for Evolution (notice the capital "e"), what I mean is that Isaying that this type of micromutation can conceivably account for the eventual changes of fish into amphibians, I do not think that is evidence.
Of course it is. It demonstrates how small changes can build up over time, which is a central prediction of evolutionary theory. When lots of small changes build up, you get large changes. It's as simple as that.

quote:
[edit] Nevermind. I gave you a chance. I'm ignoring your posts from now on. [/QB]
You've got to be kidding. swbarnes is being very polite- he's just demanding that you put up or shut up. The only one here losing his cool is you.
 
Posted by Threads (Member # 10863) on :
 
It's important to understand that there is still debate on how macroevolution occurs (ex: gradualism vs. punctuated equilibrium). However, the debate on whether it occurs is over because the evidence for macroevolution is no dependent on the mechanisms for macroevolution. I link to some pages discussing universal common descent if you would like.
 
Posted by swbarnes2 (Member # 10225) on :
 
quote:
Originally posted by Reshpeckobiggle:


You are describing a subtle change where one type of fish very gradually evolves into a very similar fish with different capabilities and strengths. That is Micromutation, and something that I have repeatedly said I don't have a problem with. It may be considered a different species depending on what changes occur and even how species is being defined at the time

When I say that there is no evidence for Evolution (notice the capital "e"), what I mean is that Isaying that this type of micromutation can conceivably account for the eventual changes of fish into amphibians, I do not think that is evidence.

The universe does not care about what you personally can or can't conceive of. No one here does, we care about what the evidence shows.

The fossil record is clear, it shows sets of fossils changing from ancient fish into ancient anphibians, until they become reptiles.

And even if we didn't have any fossil record at all, the DNA evidence would still allow us to draw the same conclusion.

That you don't know anything about the DNA, and that you refuse to look at the fossil doesn't change what the evidence is.

quote:
Nevermind. I gave you a chance. I'm ignoring your posts from now on.
Yeah, I made the cardinal error of asking you to back up your make-believe with evidence from Ensembl, and now you are pouty. How predictable.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
Originally posted by Ron Lambert:
I applaud your efforts, Reshpeckobiggle. But I think you are probably wasting your time. The pro-evolutionist lobby here is utterly wedded to the notion that only someone who is ignorant could refuse to accept evolution. When someone comes along and shows that he is not at all ignorant, and knows all the facts that they do, and still does not accept evolution, that really gores their ox. When you cite facts that are clearly inconvenient for their cherished theory, they can get mean, nasty. Rabid. And they accuse you of doing all the screaming and yelling, when it is really them. At least, that has been my experience with them. Good luck.

Thanks Ron, but that's not true of everybody. I am really hoping that if I ignore the bad apples and only engage those like Threads and Matt, and a few others from the other thread like fugu and sumnion, that this will be a very pleasant conversation, and maybe we can all learn something.
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by Reshpeckobiggle:
Ok, Tarrsk, lets tackle this. Are you saying that any change in DNA between the parent and offspring is a mutation?

*faceplant*

Yes. Of course. That's the definition of mutation!
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
Originally posted by Tarrsk:
quote:
Originally posted by Reshpeckobiggle:
Ok, Tarrsk, lets tackle this. Are you saying that any change in DNA between the parent and offspring is a mutation?

*faceplant*

Yes. Of course. That's the definition of mutation!

From wiki: In biology, mutations are changes to the base pair sequence of the genetic material of an organism. Mutations can be caused by copying errors in the genetic material during cell division, by exposure to ultraviolet or ionizing radiation, chemical mutagens, or viruses, or can occur deliberately under cellular control during processes such as hypermutation.

This is something quite different from the differences acquired by taking half your DNA from one parent and half your DNA from a different parent.
 
Posted by 0Megabyte (Member # 8624) on :
 
So, Ron, why don't YOU take a look at the DNA that swbarnes linked too, and show where that information exists in the genome, since you made a similar arguement as Resh did?

And Resh: Remember when I was defending you from the others?

You said you'd come back, and when you had time, you'd answer my questions. They said you wuoldn't, and I told them to hold on, that I believed you.

You never did. You never answered them. And eventually, you began responding to my questions, my asking you to do what you said you would do, with derision.

I was wrong about you. I was wrong to defend you. I tried to defend you, but you responded by proving their claims that you would not show anything to be true.

Why should I respect the claims of a person who does this, again?
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Ok, look, Megabyte, I'm sorry I keep disappointing you. I just greatly dislike your demands, and the way you go about the discussion. I find you to be insincere and I think you have only one goal in mind: to catch me in a trap. I'm sorry, but I'm not interested.

[Edit] Okay, you may be right. Maybe I'm not being fair to you. As much as it may irk you, I'm not going back to that other thread, or the one way back before it. I'd rather we start anew, if you're willing. Go ahead, ask me what you want to ask me.
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by Reshpeckobiggle:
quote:
Originally posted by Tarrsk:
quote:
Originally posted by Reshpeckobiggle:
Ok, Tarrsk, lets tackle this. Are you saying that any change in DNA between the parent and offspring is a mutation?

*faceplant*

Yes. Of course. That's the definition of mutation!

From wiki: In biology, mutations are changes to the base pair sequence of the genetic material of an organism. Mutations can be caused by copying errors in the genetic material during cell division, by exposure to ultraviolet or ionizing radiation, chemical mutagens, or viruses, or can occur deliberately under cellular control during processes such as hypermutation.

This is something quite different from the differences acquired by taking half your DNA from one parent and half your DNA from a different parent.

Hah. Fair enough, you got me there. I forgot about recombination, which is when you get a bit of something from Mom and a bit of something from Dad. That doesn't change the fact that for Mom and Dad to be different in the first place, mutation must have occurred at some point. Otherwise, there would be no variation in the population at all- everyone would be a clone. And if that's true, then it doesn't matter what you get from Mom or Dad, because the end product (your genotype) will always be the same.
 
Posted by Troubadour (Member # 83) on :
 
In all seriousness and no snideness intended - there's no trap, mate. There's just evidence. You make claims, they make claims and everyone provides evidence to back up their claims.

No-one's trying to trap you - even when we've been snide, we're genuinely interested in the evidence you do have and your interpretations of the evidence we provide.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
That's a premise I don't just blindly accept. Mutation may be the sole source of differences, but it may be because Adam and Eve were created with two different yet compatible sets of DNA, and all the male/female pairs on the Ark had different yet compatible sets of DNA.

I'm not saying that this is what happened, by the way. But I find it more likely to have happened than Evolution.
 
Posted by swbarnes2 (Member # 10225) on :
 
quote:
Originally posted by Reshpeckobiggle:
That's a premise I don't just blindly accept. Mutation may be the sole source of differences, but it may be because Adam and Eve were created with two different yet compatible sets of DNA, and all the male/female pairs on the Ark had different yet compatible sets of DNA.

Sigh.

There are some loci in the human genome with more than a hundred alleles.

How do you propose that two, or even eight people carried all those alleles?
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
In all seriousness and no snideness intended - there's no trap, mate. There's just evidence. You make claims, they make claims and everyone provides evidence to back up their claims.

No-one's trying to trap you - even when we've been snide, we're genuinely interested in the evidence you do have and your interpretations of the evidence we provide.



Okay, my Aussie friend. Everyone on board! No assumptions about what the other person thinks, or what he fails to understand. Just the evidence, or from my perspective, the lack thereof.
 
Posted by fugu13 (Member # 2859) on :
 
Resh: It isn't possible for two humans to have all the variation we see in the human species entirely in their genomes. There are more gene variations than there are places to put them.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
Originally posted by swbarnes2:
quote:
Originally posted by Reshpeckobiggle:
That's a premise I don't just blindly accept. Mutation may be the sole source of differences, but it may be because Adam and Eve were created with two different yet compatible sets of DNA, and all the male/female pairs on the Ark had different yet compatible sets of DNA.

Sigh.

There are some loci in the human genome with more than a hundred alleles.

How do you propose that two, or even eight people carried all those alleles?

I'm including you in my invitation, but the key here is civility. You could have left out that little "sigh." Until you do, I'm ignoring you.
 
Posted by TomDavidson (Member # 124) on :
 
quote:
"the person died because the flow of oxygen to his lings was cut off" actually does not have explanatory power.
Resh, I think this sentence, in a nutshell, helps to explain why so many people who know more about science -- and the scientific method -- than you do get frustrated with your argument. Do you understand why that sentence is ridiculous?
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by Reshpeckobiggle:
That's a premise I don't just blindly accept. Mutation may be the sole source of differences, but it may be because Adam and Eve were created with two different yet compatible sets of DNA, and all the male/female pairs on the Ark had different yet compatible sets of DNA.

There is nowhere near enough variation within the genotypes of two individual humans to account for the vast array of phenotypes we see in humans today. Even if Adam and Eve were each heterozygous at every single locus for different alleles (i.e. 4 alleles per locus), that wouldn't be anywhere near enough. Without mutation, your model implies that for any given gene, there are can be at MOST four different alleles. We know of individual loci with hundreds of alleles all by themselves. It is physically impossible for all of that variation to have come into being without some sort of mutation occurring.

Edit: Ahh, too slow again. That's what I get for double-checking my sources. [Wink]

quote:
I'm not saying that this is what happened, by the way. But I find it more likely to have happened than Evolution. [/qb]
That's because you neither understand evolution nor have knowledge of the evidence. Both are readily corrected, but you have thus far proven unwilling.

Oh. Was that not civil enough for you? [Roll Eyes]
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
Originally posted by fugu13:
Resh: It isn't possible for two humans to have all the variation we see in the human species entirely in their genomes. There are more gene variations than there are places to put them.

I know that. First let me say that I do not subscribe to the notion that I can only discount the validity of Evolution if I have a viable theory that can replace it. Even so, I'm just going to say that I don't think mutations don't happen. This is the argument that is put out by Creationists: that the original two human DNA pairs were perfect, without any flaws. Therefore their children were born with perfect DNA, and so they could interbreed without worry about deformities. However, after the Flood the firmament which blocked so much of the harmful rays of the sun fell, and mutations began occurring with some frequency. One consequence that the Bible describes and might have been predicted by a theory based upon Creation-science is that within a few generations life spans would have been severely reduced, from thousands of years to no more than 120 or so.

Again, I'm not saying I think this is what happened, but I'm not ruling it or something similar from happening.
 
Posted by MattP (Member # 10495) on :
 
Resh, you need to get off the hair trigger. People are willing to answer your questions, but when you make blind assertions that are indisputably impossible and propose that they are the most likely explanation, then you might just get a *sigh* or two in response.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
Originally posted by Tarrsk:


quote:
I'm not saying that this is what happened, by the way. But I find it more likely to have happened than Evolution.
That's because you neither understand evolution nor have knowledge of the evidence. Both are readily corrected, but you have thus far proven unwilling.

Oh. Was that not civil enough for you? [Roll Eyes] [/QB]

No, and if you have to ask then you should already have known.
 
Posted by MattP (Member # 10495) on :
 
quote:
Again, I'm not saying I think this is what happened, but I'm not ruling it or something similar from happening.
Someone said that without mutations, we'd all be clones. You countered by stating that perhaps all of the variation for creating the diversity we see in humans today was part of Adam and Eve's DNA. Now it seems that you're agreeing with the original statement that mutations must have occurred.

I find this very confusing.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
Originally posted by MattP:
Resh, you need to get off the hair trigger. People are willing to answer your questions, but when you make blind assertions that are indisputably impossible and propose that they are the most likely explanation, then you might just get a *sigh* or two in response.

Maybe, but I'm not sure how much leeway I can allow, considering how quickly things degrade. I mean, it's already happening, even with you. I don't want to hear that I made "blind assertions that are indisputably impossible and propose that they are the most likely explanation." First off, I didn't say it was the most likely, I just said I find it more likely, by simple virtue of the fact that I find Evolution to be nigh impossible. Second, don't just tell me something is indisputably impossible, tell me why you think so.
 
Posted by MattP (Member # 10495) on :
 
quote:
Second, don't just tell me something is indisputably impossible, tell me why you think so.
You were told by a couple different people. You just weren't happy with their attitude.

I'll stay off the thread to avoid making any further comments that you might interpret as uncivil.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
Originally posted by MattP:
quote:
Again, I'm not saying I think this is what happened, but I'm not ruling it or something similar from happening.
Someone said that without mutations, we'd all be clones. You countered by stating that perhaps all of the variation for creating the diversity we see in humans today was part of Adam and Eve's DNA. Now it seems that you're agreeing with the original statement that mutations must have occurred.

I find this very confusing.

That's because you've got it wrong. I wasn't countering the fact that mutations occur, I was countering the notion that only through mutations may variations arise. I've said this before: I think it may be possible that there were many different kinds of animals and because of mutations all those different kinds have devolved into all the very specialized species. Like, there used to be only one kind of sqirrel, and now all the different types of squirrels out there came from them.

Once more, I allow for the possibility, this is not a theory of mine.
 
Posted by 0Megabyte (Member # 8624) on :
 
"I find you to be insincere and I think you have only one goal in mind: to catch me in a trap. I'm sorry, but I'm not interested."

Insincere? Perhaps my posts on the subject have degenerated, after the earlier times when I put a lot of effort into it didn't turn out so well. It's not fun, and definitely gives me less incentive to be as rigorous as I should be, and for that I'm sorry. But insincere? No... well. My questions aren't. I'll admit I've been less than respectful, but this has not been a one way street, friend.

I'm not trying to trap you. Defining your terms isn't trapping you. Asking you questions, asking you to back up your statements, asking you your rationale, and the difference between your beliefs and others... these aren't traps. These are not insincere questions.

They're only the kinds of questions I ask myself, every day. And they're only the kinds of questions you'd be expected to answer in science, as well as in life. How you know something, what evidence you have, what your theory predicts, and how does that precition relate to the existing data, what data would you need to know to be certain more certain, what you mean precisely by a word or concept, etc.

These kinds of questions are vital in life. Certainly you ask questions about a used car, and try to figure things out. Same with diseases. And in school, unsubstantiated statments get an F for a reason. My questions, if not my tone, are quite sincere, and quite honest, and are the sorts of things anyone trying to do science should have to answer. (should is key word. Not that things are perfect, of course.)

As for questions... we'll see. I won't say no, and I doubt I'd be able to hold out on a no. But even so, forgive me for being wary.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
Originally posted by MattP:
quote:
Second, don't just tell me something is indisputably impossible, tell me why you think so.
You were told by a couple different people. You just weren't happy with their attitude.

I'll stay off the thread to avoid making any further comments that you might interpret as uncivil.

No, come on, don't do that. We just need to stay focussed, and this sort of thing is distracting. You'll notice that when someone told me why it was impossible, I addressed the problem.
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by Reshpeckobiggle:
quote:
Originally posted by MattP:
Resh, you need to get off the hair trigger. People are willing to answer your questions, but when you make blind assertions that are indisputably impossible and propose that they are the most likely explanation, then you might just get a *sigh* or two in response.

Maybe, but I'm not sure how much leeway I can allow, considering how quickly things degrade. I mean, it's already happening, even with you.
If people seem hostile, that's entirely because of your own attitude. Perhaps you should pull out that giant honkin' log in your eye before you start tweaking others about the splinters in theirs?

quote:
I don't want to hear that I made "blind assertions that are indisputably impossible and propose that they are the most likely explanation."
If that is what you did, how is it "uncivil" to point it out?

quote:
First off, I didn't say it was the most likely, I just said I find it more likely, by simple virtue of the fact that I find Evolution to be nigh impossible. Second, don't just tell me something is indisputably impossible, tell me why you think so. [/QB]
That's exactly what people have been doing. You just choose to imagine some sort of intended offense against your delicate disposition rather than address the substance of our responses. swbarnes, for example, has addressed virtually every one of your points in both this thread and the last one, only to be shot down with a simple "la la la I'm not listening because you're so MEAN!"
 
Posted by King of Men (Member # 6684) on :
 
No blood for debate! Posters home now!
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Tarrsk, that's exactly what fugu did, telling me why he thought I was wrong and he was the one who got an answer from me, even though you and swbarnes made essentially the same point. On the last thread I was enjoying the conversation with him, Matt, suminon, and some of the others. But a few of the others (not you then, but you now) were ruining the experience. I don't have delicate sensibilities, I just don't feel like wasting my time, which is what I'm doing now.

I'm not officially ignoring anybody, I'm just not responding to posts that are intentionally insulting.

Go for it Megabyte. I understand your concerns and I'll keep them in mind.
 
Posted by TomDavidson (Member # 124) on :
 
quote:
I'm just not responding to posts that are intentionally insulting.
Resh, you are insulted when people call you wrong. In cases like this, in which you're manifestly wrong, it is impossible to communicate the reality of the situation to you without insulting you.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Actually Megabyte, you don't have to start by asking me questions. You can just jump in with an answer to one of mine (and so can everyone else if they feel so inclined): How much of the evidence for evolution is actually just conceptualizations, and not actual empirical evidence? If all the conceptions about evolution were inadmissible as evidence, how much of the theory would be left?
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by Reshpeckobiggle:
Tarrsk, that's exactly what fugu did, telling me why he thought I was wrong and he was the one who got an answer from me, even though you and swbarnes made essentially the same point. On the last thread I was enjoying the conversation with him, Matt, suminon, and some of the others. But a few of the others (not you then, but you now) were ruining the experience. I don't have delicate sensibilities, I just don't feel like wasting my time, which is what I'm doing now.

I have to admit, I don't really give a damn whether you personally think I'm being uncivil. I think I'm being perfectly civil, as are swbarnes and MattP, and I suspect that other people reading this thread (including the mods) would concur. Nobody has done the internet equivalent of raising their voices here. We just don't see any point in sugar-coating our phrases, especially when doing so would actually obscure what we are trying to say.

quote:
I'm not officially ignoring anybody, I'm just not responding to posts that are intentionally insulting.[/QB]
Again, nobody is being intentionally insulting. Some of us are exasperated, sure, but if that's enough to turn you into Little Miss Junior Mod, then that's your own lookout, not ours.

quote:
Originally posted by TomDavidson:
Resh, you are insulted when people call you wrong. In cases like this, in which you're manifestly wrong, it is impossible to communicate the reality of the situation to you without insulting you.

Exactly my point, but better stated. Thanks, Tom.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
Originally posted by TomDavidson:
quote:
I'm just not responding to posts that are intentionally insulting.
Resh, you are insulted when people call you wrong. In cases like this, in which you're manifestly wrong, it is impossible to communicate the reality of the situation to you without insulting you.
Tom, I'm not insulted when people call me wrong, though I would prefer that people say that my belief or understanding is wrong. I only have a problem when people just come out and tell me I'm wrong without bothering to explain why. This is why it seems to be, however erroneously) that Evolutionists seem to believe that doubting the theory automatically implies ignorance.

An example would look something like "in cases like this, in which you're manifestly wrong, it is impossible to communicate the reality of the situation to you without insulting you."
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Okay Tarrsk, but have you noticed that because of all this (everyone being insulting, me being hypersensitive, or whatever combination of the two), we aren't talking about Evolution? Seriously, I'm just asking that people stay focused and avoid name-calling, unfounded assumptions about the other person's motive, condescending language, that sort of thing. Can we agree on that? I disagree with you that you have-to sugarcoat anything in order to be civil, not if you stick to talking about the theories and ideas that get thrown about. Refraining from saying things like "Little Miss Junior Mod" is not going to hurt your ability to defend the theory of evolution.
 
Posted by rivka (Member # 4859) on :
 
quote:
Originally posted by King of Men:
What if they gave an evolution thread, and nobody came?

quote:
Originally posted by King of Men:
All we're sayin' is, give shuttin' up a chance!

quote:
Originally posted by King of Men:
Hell no, we won't post!

quote:
Originally posted by King of Men:
This thread is a quagmire. I think we should pull out all our posters from it right now.

quote:
Originally posted by King of Men:
No blood for debate! Posters home now!

This may be a sign of the apocalypse, but I agree with every post of KoM's in this thread so far.

I sort of understand why people keep engaging Resh. Every so often, it looks like some headway might actually be possible. It's always illusory, but I understand the hoping.

But engaging him in a thread he can delete any time (and I think the odds are better than even that he will), when there's already a perfectly good one that he has chosen to ignore? Color me bewildered.
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by Reshpeckobiggle:
Okay Tarrsk, but have you noticed that because of all this (everyone being insulting, me being hypersensitive, or whatever combination of the two), we aren't talking about Evolution? Seriously, I'm just asking that people stay focused and avoid name-calling, unfounded assumptions about the other person's motive, condescending language, that sort of thing. Can we agree on that?

Sure, I'd be happy to. Of course, it does require you to stop whining about how people are being "uncivil." Can you do that?

quote:
I disagree with you that you have-to sugarcoat anything in order to be civil, not if you stick to talking about the theories and ideas that get thrown about. Refraining from saying things like "Little Miss Junior Mod" is not going to hurt your ability to defend the theory of evolution. [/QB]
I like how you plead that we on the other side get back on-topic, and then continue to perpetuate the off-topicness yourself. Way to lead by example!
 
Posted by TomDavidson (Member # 124) on :
 
Again, consider the previous sentence I highlighted for you. You wrote, in response to someone else's generous explanation of why Natural Selection is not a mere tautology, the following:

quote:
"the person died because the flow of oxygen to his lungs was cut off" actually does not have explanatory power.
This is untrue. This is, in fact, blatantly untrue. While the statement does not provide a full and detailed explanation of all the various mechanisms that produce death, it is otherwise an accurate explanation of death: the person died because the flow of oxygen to his lungs was cut off. We can investigate why his lungs were deprived of oxygen; we can investigate why people require oxygen. But that's not necessary for the statement you quoted to, in and of itself, to have some explanatory power.

In the same way, "those who survive to breed are more likely to breed" is not a tautology; it helps to explain why desirable genotypes are more likely to occur over the long term.

Do you understand this now?
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
I promise I will not delete this thread, to anyone who is wondering.

quote:
Originally posted by 0Megabyte (elsewhere):
" All life forms are found with fully developed features"

Define "fully developed" features. How would you tell if a feature was partly developed or fully developed in the first place? Further, you are holding these things as fully or incompletely developed compared to what standard?

I would say that "fully-developed" could describe a great many things. For instance, one might consider a penguins wing fully developed even though it doesn't confer upon the bird the ability to fly. On the other hand, if you consider all species as being in a transitional state, then an eagle's wing might not be fully developed.

I think the more important thing to focus on is that there is nothing that one could consider "half developed" in the fossil record. Like, there are no fossils of reptiles with some of their jaw bones moved up closer to where they need to be to form a mammalian ear, but not quite there yet. There are not flying mammal fossils that show evidence of organs that might at some point become a sonar system, but they haven't made it there yet.

According to the theory, the animals that filled that intermediate space between those specific feature would have made use of those intermediate stages to their advantage, and so they would have just looked like fully developed features all by themselves. But no such creatures have ever been found.
 
Posted by swbarnes2 (Member # 10225) on :
 
quote:
Originally posted by Reshpeckobiggle:
We just need to stay focussed, and this sort of thing is distracting. You'll notice that when someone told me why it was impossible, I addressed the problem.

Fine, then focus.

You said that you believed a genome contains all the information it needs to generate a wide variety of phenotypes.

Well, you've got a whole genomes for a fair number of organisms at your fingertips. Human, mouse, rat, dog, zebrafish...etc.

So pick one varying trait, like fur color in mice, and show us in the genome of C57L/B6 where all the information for all the other fur colors are kept.

It's all right here. So focus, and show us.

www.ensembl.org

Or admit that you can't find any evidence to support your supposition.
 
Posted by swbarnes2 (Member # 10225) on :
 
[QUOTE]Originally posted by Reshpeckobiggle:
[QB]

I think the more important thing to focus on is that there is nothing that one could consider "half developed" in the fossil record. Like, there are no fossils of reptiles with some of their jaw bones moved up closer to where they need to be to form a mammalian ear, but not quite there yet.

Really?

http://www.talkorigins.org/indexcc/CC/CC215.html

"The transition from reptile to mammal has an excellent record. The following fossils are just a sampling. In particular, these fossils document the transition of one type of jaw joint into another. Reptiles have one bone in the middle ear and several bones in the lower jaw. Mammals have three bones in the middle ear and only one bone in the lower jaw. These species show transitional jaw-ear arrangements (Hunt 1997; White 2002b). The sequence shows transitional stages in other features, too, such as skull, vertebrae, ribs, and toes.


Sphenacodon (late Pennsylvanian to early Permian, about 270 million years ago (Mya)). Lower jaw is made of multiple bones; the jaw hinge is fully reptilian. No eardrum.
Biarmosuchia (late Permian). One of the earliest therapsids. Jaw hinge is more mammalian. Upper jaw is fixed. Hindlimbs are more upright.
Procynosuchus (latest Permian). A primitive cynodont, a group of mammal-like therapsids. Most of the lower jaw bones are grouped in a small complex near the jaw hinge.
Thrinaxodon (early Triassic). A more advanced cynodont. An eardrum has developed in the lower jaw, allowing it to hear airborne sound. Its quadrate and articular jaw bones could vibrate freely, allowing them to function for sound transmission while still functioning as jaw bones. All four legs are fully upright.
Probainognathus (mid-Triassic, about 235 Mya). It has two jaw joints: mammalian and reptilian (White 2002a).
Diarthrognathus (early Jurassic, 209 Mya). An advanced cynodont. It still has a double jaw joint, but the reptilian joint functions almost entirely for hearing.
Morganucodon (early Jurassic, about 220 Mya). It still has a remnant of the reptilian jaw joint (Kermack et al. 1981).
Hadrocodium (early Jurassic). Its middle ear bones have moved from the jaw to the cranium (Luo et al. 2001; White 2002b)."
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Ok, Tom, I think you missed the point. I was drawing an analogy there. Saying that oxygen was cut off from the person (however that happened) is the cause of death in a very superficial sense. Saying that humans need oxygen to live, and so humans without oxygen do not live is the equivalent to natural selection. Saying this person died because oxygen was cut of is the equivalent to Life evolved because of natural selection. Neither are really an explanation of anything. The major difference here is that we can observe lack of oxygen killing people, but we cant observe natural selection creating new species (beyond the very small changes I talked about earlier.)
 
Posted by Threads (Member # 10863) on :
 
It's silly to expect us to find transitional fossils for every single transitional creature that could have existed. Fossils only form under specific conditions and are prone to being destroyed by natural events. In the previous thread I provided a link to a page that cited hundreds of different transitional species that have been found.
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by Threads:
It's silly to expect us to find transitional fossils for every single transitional creature that could have existed. Fossils only form under specific conditions and are prone to being destroyed by natural events. In the previous thread I provided a link to a page that cited hundreds of different transitional species that have been found.

Furthermore, as has already been pointed out here and elsewhere, even if the fossil record didn't exist, there is more than enough genetic data at this point to fully support evolutionary theory by itself. The fact that the fossil record also supports evolution (along with every other field in biology) is just delicious creamy icing on the phylogenetic cake.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
Originally posted by swbarnes2:

You said that you believed a genome contains all the information it needs to generate a wide variety of phenotypes.

Well, you've got a whole genomes for a fair number of organisms at your fingertips. Human, mouse, rat, dog, zebrafish...etc.

So pick one varying trait, like fur color in mice, and show us in the genome of C57L/B6 where all the information for all the other fur colors are kept.

It's all right here. So focus, and show us.

www.ensembl.org

Or admit that you can't find any evidence to support your supposition.

Willful misinterpretation of what I said? I didn't say I believed that is what happened. I just said that I haven't ruled it out as a possibility. And with my limited technical knowledge of genetics, I still haven't. You're insisting that I go and do something that I can't do, because I don't have the training required to do it. Somehow this is supposed to show that I have no right to doubt the theory of Evolution.
 
Posted by MrSquicky (Member # 1802) on :
 
I'm disappointed that you haven't seen fit to address the video I saw of a dog wearing scuba gear. I mean, I get that the example I gave of how macro-evolution can be demonstrated through the fossil record of a land mammal evolving into proto-whales didn't fit your criteria, but, for Pete's sake, that dog was wearing scuba gear!

---

edit: Here's irrefutable proof that evolution is real. I defy you to tell me that dog isn't wearing diving equipment.
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by Reshpeckobiggle:
quote:
Originally posted by swbarnes2:

You said that you believed a genome contains all the information it needs to generate a wide variety of phenotypes.

Well, you've got a whole genomes for a fair number of organisms at your fingertips. Human, mouse, rat, dog, zebrafish...etc.

So pick one varying trait, like fur color in mice, and show us in the genome of C57L/B6 where all the information for all the other fur colors are kept.

It's all right here. So focus, and show us.

www.ensembl.org

Or admit that you can't find any evidence to support your supposition.

Willful misinterpretation of what I said? I didn't say I believed that is what happened. I just said that I haven't ruled it out as a possibility. And with my limited technical knowledge of genetics, I still haven't. You're insisting that I go and do something that I can't do, because I don't have the training required to do it. Somehow this is supposed to show that I have no right to doubt the theory of Evolution.
Of course it does. Do you really think that expertise means nothing? If there was a thread on the engineering of spaceflight-capable rockets, would it be intellectually valid for someone who never got through high-school geometry to wander in and casually dismiss everything being said because he can't understand calculus?

We've said it over and over again: unless you are willing to put in some effort to learn the science, you will never be able to convincingly argue your case. This doesn't mean you need to go out and get your PhD in genetics before posting at Hatrack again. And we are happy to describe evolutionary theory as best we can considering your level of knowledge on the subject. But just as you need some knowledge of advanced mathematics to weigh in on space shuttle design, you really need to know the basics of biology before you are qualified to talk about the merits (or lack thereof) of evolutionary theory.

Edit: Just to be clear, I am NOT saying that people without science backgrounds are somehow inferior or less-intelligent than those who have had advanced training the subject. I wouldn't presume to tell a rocket scientist how he should be designing his rockets; nor would I presume to tell a plumber the correct way to fix my sink. In both cases, there is technical knowledge that they have and I do not. If I were to spend the time and effort necessary to learn rocket science or plumbing, then I would feel confident talking to them at their own level- but only then.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Ok, swbarnes, the reptilian jawbone thing looks convincing. I was using that example because it was just something I read a while ago. The book didn't give any examples, it just said that that was what happened. However, it looks like there is quite a jump between the Biarmosuchia and the Procynosuchus. Is not the Procynosuchus actually just a mammal? I actually don't know, I'm just asking.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
I'm sorry, MrSquicky. I actually want to see that. I'll report back soon.

A valid point, swbarnes. The difference is that rockets don't imply a negation of ones religious beliefs (not that Evolution necessarily does, but it sure seems to; ruling out the need for a Creator pretty much rules out the possibility of a Creator for a skeptic.) Moreover, they don't imply that I must ignore some very basic concepts that I can reasonably hold without an advanced degree. Not only that, but you can show me what rockets can do, but you can't show me what Evolution can do (beyond varying beak sizes and moth colorings.) Instead, you are trying to convince me that all this came from chaos based on some natural law that says random matter has some self-ordering properties to the degree of creating the most inconceivably complex structures ever known.
 
Posted by The Rabbit (Member # 671) on :
 
quote:
How much of the evidence for evolution is actually just conceptualizations, and not actual empirical evidence?
I'm not sure you what you mean by "conceptualizations". That is not a term that commonly used in science.

In science, we look at the empirical evidence. From that evidence we develop a hypothesis that fits the observed evidence. The hypothesis must be predictive. Experiments are then designed to see whether the hypothesis can accurately predict stuff that no one had previously observed. If it can't accurately predict the new data, then we have to come up with a new hypothesis to fit all the empirical evidence. Once a hypothesis has accurately predicted the outcome of numerous experiments, it is called a scientific theory.

Evolution is a theory that accurately fits a very large amount of empirical evidence. For example:

We know by empirical observation of fossils that life has existed on this planet for ~225 million years.

We know by empirical observation of the the fossil record that life began as simple single celled organisims and the over time increasingly complex life forms appeared.

We know from the fossil record that some species went extinct and other new species appeared.

We know from the fossil record that many characteristics appeared in a step wise fashion. That is the fossil record shows a progression of small changes which over time add up to big changes.

All of that is empirical fact. No theories involved. No conceptualization.

We know from studies of wild currently living species and from laboratory studies of simple organisms that mutations and natural selection occur. Once again this is not conjecture or theory, it is empirically observed.

We know that traits are passed from one generation to the next via DNA. We know that changes in the DNA result in changes in the behavior and function of the organisms. We know that changes in the DNA can occur through a variety of random natural processes including (but not limited to) point mutations, gene exchanges, and gene splicing. All that has been empirically observed.

Although most mutations in the DNA are detrimental to survival, mutations that actually favor survival have been empircally observed. In laboratory experiments, we know we can manipulate the environment to select for a particular mutation. For example, by growing bacteria in an environment where antibiotics are present we can select for bacteria which by random mutation are resistent to the antibiotic. By gradually increasing the level of antibiotic in the environment, we can cause the evolution of bacteria that are resistent to higher and higher levels of antibiotic. There are many many examples.

Because it takes many generations for a significant change to occur through these mechanisms, laboratory observation of evolution has been limited to organisms that reproduce very fast so that we can observe many generations in the the course of a few days to years.

That is just the briefest summary of the empirical evidence which fits the theory of evolution. As we learn more and more about fossils, genes, proteins and so on, we come up with better and better experiments to challenge this theory. So far, the more evidence we accumulate the better the theory looks.

For most scientists the acid test of any theory is that it is useful in leading to new discoveries, better understanding of the natural world and solving problems. The theory of evolution passes that test. Its led to many hypotheses that have in turn led to really important discoveries in biology that have helped us treat diseases, grow better crops, and resulted in valuable technologies.


This is not to say that evolution is the only hypothesis that could possibly fit all the data. To this point, however, the competing hypothese that fits the data is the hypothesis that God created everything with the features we observe. Unfortunately, that theory is very uninteresting from a scientific point of view because it isn't predictive in nature so it doesn't tell us what kind of experiments we should be trying. As a result it just isn't useful for helping us better understand the natural world or solving problems.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Well put Rabbit. By conceptualizations, I mean stories about how all sorts of developments occurred based upon the necessity of them occurring. For instance, we all know the different stages of evolution that they human eye had to go through in order to get to its current level of development. But how many of those stages are implied by the necessity of their existence, and not because we've actually seen proof of their existence? This is not to say it didn't happen, just that it can't be shown that it did aside from a range of complexity in eye types and a requirement by the theory that says it must have. This is one example.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
Originally posted by MrSquicky:
I'm disappointed that you haven't seen fit to address the video I saw of a dog wearing scuba gear. I mean, I get that the example I gave of how macro-evolution can be demonstrated through the fossil record of a land mammal evolving into proto-whales didn't fit your criteria, but, for Pete's sake, that dog was wearing scuba gear!

---

edit: Here's irrefutable proof that evolution is real. I defy you to tell me that dog isn't wearing diving equipment.

That image was faked. Therefore Evolution is false.
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by Reshpeckobiggle:
I'm sorry, MrSquicky. I actually want to see that. I'll report back soon.

A valid point, swbarnes. The difference is that rockets don't imply a negation of ones religious beliefs (not that Evolution necessarily does, but it sure seems to; ruling out the need for a Creator pretty much rules out the possibility of a Creator for a skeptic.)

It seems to me that if your faith is shaken by some simple facts, then it's not a terribly strong faith. But I'll leave you to figure that out, it's not really my business.

quote:
Moreover, they don't imply that I must ignore some very basic concepts that I can reasonably hold without an advanced degree.
Hate to break it to you, but being simple enough for a non-advanced degree holder to understand is not a prerequisite for something to be true. It is indisputable that rockets have been designed that can reach escape velocity and enter orbit around the Earth. You and I might understand the basic physics of motion, but there is certainly plenty about rocket design that we do not understand- the chemistry of the fuel, the complex aerodynamics that minimize drag from air. Are you saying that the rocket would still be able to fly without its designers knowing these things?

quote:
Not only that, but you can show me what rockets can do, but you can't show me what Evolution can do (beyond varying beak sizes and moth colorings.)
How about virtually every single medication produced in the last twenty years? Those gene sequence databases which you so casually dismissed in the previous thread have been critical to the development of modern biotechnology. Molecular phylogenies allow us to target genes that are evolutionarily conserved between humans and mice, so that we can test new therapies in the mice before moving into human subjects. If evolutionary theory wasn't true, then this approach would be fundamentally flawed, and we should be seeing the majority of human tests fail miserably as drugs that did the trick in mice either do nothing in humans or are actively deleterious. This does not happen.

Heck, I just spent last night reading all about how the cancer drug Glivec was developed. Every bit of science in those papers was based in evolutionary theory- if Darwin's idea was wrong, none of the experiments described would have worked. And yet, amazingly, all of them did. And now we have a powerful way to combat a particular form of leukemia.

Incidentally, cancer itself is a form of evolution in action. Mutations in your cells lead to some cells losing their normal inhibition against unwanted growth and division, and eventually these cell populations begin to grow vociferously. They have developed what from their perspective is a highly beneficial set of mutations that allow them to rapidly expand their population. Of course, in the long run, this ends up killing the host person, but again: evolution doesn't think ahead. From the perspective of that newly mutated cancer cell, it is absolutely beneficial for it to grow and spread its now slightly-different genetic code as much as it can. That this will inevitably lead to its own doom is irrelevant from the perspective of natural selection.

quote:
Instead, you are trying to convince me that all this came from chaos based on some natural law that says random matter has some self-ordering properties to the degree of creating the most inconceivably complex structures ever known. [/QB]
Someone's edging dangerously close to the thermodynamics fallacy again. There is nothing inherently impossible about complexity arising from disorder, so long as there exists a source of free energy to power it. Which we do- the sun.
 
Posted by 0Megabyte (Member # 8624) on :
 
Tarssk. I'd love to see that information about that cancer drug. You said you read it last night? Where? I want to see!

Also, unrelated:

That website is cool, but I can't yet make heads or tails of it. I'll figure it out eventually, after consulting someone who knows what it means, I'm sure. But it's not meant for me, I know that much. It'd definitely be cool if I could read it. I can sympathize with why Resh would have a worry about someone expecting something of him that most of the rest of us can't do.

I can't wait to figure this stuff out, and what it means!
 
Posted by TomDavidson (Member # 124) on :
 
quote:
Saying that humans need oxygen to live, and so humans without oxygen do not live is the equivalent to natural selection. Saying this person died because oxygen was cut of is the equivalent to Life evolved because of natural selection. Neither are really an explanation of anything.
*blink* It seems to me that they're answers to the questions "why did life evolve" and "how did he die," actually. Why don't you think they answer those questions?

quote:
This is not to say it didn't happen, just that it can't be shown that it did aside from a range of complexity in eye types and a requirement by the theory that says it must have.
So you concede that we have a) a range of complexity in eye types and b) a requirement by the theory that this complexity must exist. What else do you need?
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
I don't have a problem with order arising out of imbalances in a closed system. It's the type of order and the amount. The fallacy lies in thinking that order is order, be it salt crystals or DNA.

Those developments would work even if Evolution is false because the vital aspect that Evolution plays in those developments is commonality, which Evolution says results from common descent. However, just so long as the commonality is true, the approach works.
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by 0Megabyte:
Tarssk. I'd love to see that information about that cancer drug. You said you read it last night? Where? I want to see!

Yeah, it was a set of three papers I was reading for one of my classes. Unfortunately, I'm not sure they're available for free online unless you're at a university that has paid for access to the journals, but here are the citations if you want to try to find them:

Druker, B.J., Tamura, S., Buchdunger, E., Ohno, S., Segal, G.M., Fanning, S., Zimmerman, J., and Lydon, N.B. (1996) Effects of a selective inhibitor of the Abl tyrosine kinase on the growth of Bcr-Abl positive cells. Nature Medicine 2, 561-566.

Druker, B.J., Talpaz, M., Resta, D.J., Peng, B., Buchdunger,E., Ford, J.M., Lydon, N.D., Kantarjian, H., Capeville, R., Ohno-Jones, S. and Sawyers, C.L. (April 5, 2001) Efficacy and safety of a specific inhibitor of the BCR-ABL tyrosine kinase in chronic myeloid leukemia. New England Journal of Medicine 344, 1031-1037.

Gorre, M.E., Mohammed, M., Ellwood, K., Hsu, N., Paquette, R., Rao, P.N., Sawyers, C.L. (2001) Clinical resistance to STI-571 cancer therapy caused by BCR-ABL gene mutation or amplification. Science 293, 876-880.

The first paper describes how a highly specific inhibitor to the mutant BCR-ABL protein (generated by a chromosome fusion and the cause of chronic myelogenous leukemia) was discovered and tested in mice and in vitro. This inhibitor is the molecule that will eventually be renamed "Glivec" in its widespread use as a treatment for CML.

The second paper is a phase 1 clinical trial in human leukemia patients, out of which almost every single one showed remission from the cancer after treatment with sufficiently high doses of the inhibitor compound. Again, this is pretty unbeatable evidence that the bcr and abl loci are conserved between mice and humans.

The third paper goes deeper into the genetics of the cancer and how it interacts with the inhibitor- specifically, how the cancer actually evolves within patients to become resistant to the drug. It also makes some interesting predictions regarding cancer relapse in general.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
Originally posted by TomDavidson:
quote:
Saying that humans need oxygen to live, and so humans without oxygen do not live is the equivalent to natural selection. Saying this person died because oxygen was cut of is the equivalent to Life evolved because of natural selection. Neither are really an explanation of anything.
*blink* It seems to me that they're answers to the questions "why did life evolve" and "how did he die," actually. Why don't you think they answer those questions?
Like I said, they are only superficial answers. Look at it like this: How did he die? Lack of oxygen. Why did that kill him? Ooooh... that's a bit more complicated.

quote:
quote:
This is not to say it didn't happen, just that it can't be shown that it did aside from a range of complexity in eye types and a requirement by the theory that says it must have.
So you concede that we have a) a range of complexity in eye types and b) a requirement by the theory that this complexity must exist. What else do you need?
Nothing, if you already believe the theory in the first place. I should add to that though, that the range of eye types that we have are a small fraction of the eye types required by the theory.

I gotta go play poker, I'll be back later.
 
Posted by The Rabbit (Member # 671) on :
 
quote:
Originally posted by Reshpeckobiggle:
By conceptualizations, I mean stories about how all sorts of developments occurred based upon the necessity of them occurring. For instance, we all know the different stages of evolution that they human eye had to go through in order to get to its current level of development. But how many of those stages are implied by the necessity of their existence, and not because we've actually seen proof of their existence?

Evolution of the eye in Wikipedia shows examples of organisms that exhibit many of the step proposed for evolution of the eye.

But in general, its impossible to answer your question first because the answer is constantly changing. The empirical evidence for evolution was extremely small at the time of Darwin but is extensive today. Second, the question of how much is empirical vs hypothetical is a moving target. Suppose for example someone proposes 10 steps for the evolution of the eye and 6 of them are empirical but the other 4 are only hypothetical. Well then people will start looking for examples of the other 4 steps. Maybe they find 2 of them. But those 2 aren't exactly what was originally proposed so we have to modify the original 10 steps. So then we might have 12 steps or perhaps only 9.

Then when we look further, we observe that those 10 steps represented macroscopic structures in the eye and that each of those structures involved half a dozen or more different proteins. At this level we might be looking then at 100 steps. Then we see that each of the proteins required a dozen mutations to get it from some other protein and we up to 1000 steps. Or we might find that insertion of a virus at one point in the DNA was enough to jump dozens of steps and so we are back down to a few dozen steps instead of hundreds. We might even find that a small change in one protein allowed it to interact differently with a whole host of proteins so that what looks like a big step at the macroscopic level, was only a tiny step at the molecular level.

If your question is, how close is science to understanding the details of the evolutionary process, the answer is far more is unknown than is known. But that is changing very rapidly. That is one of the cool things about science. A good theory, like evolution illuminates the pieces that we don't know. It tells us where to start looking. In this sense evolution is an excellent theory. Without it we wouldn't be making the revolutionary advances in understanding biology that we are making.
 
Posted by swbarnes2 (Member # 10225) on :
 
quote:
Originally posted by Reshpeckobiggle:
Willful misinterpretation of what I said? I didn't say I believed that is what happened. I just said that I haven't ruled it out as a possibility.



Why don't you try doing things forwards for a change?

Instead of making things up, and getting pouty when people point out that that everything that you invent out of your head contradicts the data, why don't you look at the data first, and then draw conclusions from that?

You've done this about 5 times in the last few days...said "The biology probably works like this", and then someone points out to you that it doesn't, and then you cry "Oh, I didn't say I was sure...I jsut said maybe, it's mean for you to hold me to something when I only said "maybe".

Why don't you "focus" on only making factual claims which you can evidence, rather than making up a lot of things that you can't?

quote:
And with my limited technical knowledge of genetics, I still haven't. You're insisting that I go and do something that I can't do, because I don't have the training required to do it.
If you can't stand the heat, get out of the kitchen.

If you are going to make factual claims that are false, you will be called on it. It's not our fault that you make claims that are wrong. It's not our fault that you make claims you can't defend. You are not the victim here. It is your responsibility defend your own statements.

Or, if you don't want to learn all this, you could learn what conclusions have been drawn by the community of experts who do know all this genetics stuff.

quote:
Somehow this is supposed to show that I have no right to doubt the theory of Evolution.
You have all the right in the world to doubt whatever you want. And we have every right to point out that your claims are laughably false, and often ridiculously stupid.
 
Posted by Troubadour (Member # 83) on :
 
I decided against quoting the Wikipedia article, because I think that Resh will have semantic problems with the terminology. Resh, that isn't an insult, I just think we need to be careful about how things are phrased.

Another article (which I think Resh will also take issue with) gives excellent evidence for a link between primitive and modern eyes.

I know Resh will say that it's only evidence for what could have happened, but it's extremely compelling nonetheless.

At some point tho, the weight of compelling 'could haves' backed by solid evidence should be enough for an impartial party to be convinced. Particularly considering the weight of actual empirical evidence.

Resh, as I've alluded to in previous posts, this is what happened to me - except I wasn't impartial. I was arguing your side of this debate. I was a radical hard-core young-earth creationist who had what I thought was solid evidence and enough of an understanding of scientific principles to successfully argue against just about anyone. My biology teacher and none of my peers could present an argument that I couldn't counter - and counter with specific examples and evidence.

It wasn't until I hit uni and met a particularly gifted and scientifically trained priest who could not only counter my arguments, but provide me with a spiritual framework for the co-existence of faith and evolution.

Sure, with faith, evolution is unnecessary - but many many Christians, particularly outside the US, are comfortable with evolution as a mechanism of God's will.

Anecdotal, I know, but hey - perspective.
 
Posted by Kwea (Member # 2199) on :
 
quote:
Originally posted by Reshpeckobiggle:

The tautology about oxygen is just a useless. "the person died because the flow of oxygen to his lings was cut off" actually does not have explanatory power. It doesn't explain why humans need oxygen, or why the oxygen source was cut off. You actually need to have some sort of explanation about how oxygen is used by the body, and what happens when it is cut off. That tautology explains why the person died just as accurately as Natural Selection explains how we evolved, which is to say, it doesn't.

It depends on what you are trying to explain, really. The over-simplified example of oxygen isn't useless if what you are trying to explain is why someone dies when submerged in water, or why someone dies when their airway is blocked.

At that point it is exactly the explaination needed.

You could go into details...how the lack of oxygen causes cell death, how oxygen is processed, how a fluid in the lungs can't be processed the same way as a gas even though both include oxygen....but none of that makes the first statement less true, or less of an explaination.

[Dont Know]

[ December 10, 2007, 10:43 PM: Message edited by: Kwea ]
 
Posted by TomDavidson (Member # 124) on :
 
quote:
Like I said, they are only superficial answers. Look at it like this: How did he die? Lack of oxygen. Why did that kill him? Ooooh... that's a bit more complicated.
They're superficial answers, yes. But they are not uninformative answers. Neither are they tautologies.

Right now, Resh, you can only handle superficial answers. People have attempted to give you less superficial answers about why natural selection is thought to work, only to have you complain about the amount of technical jargon used. You keep coming back to "natural selection says that those who survive to breed, breed" as if that were the extent of the theory. It's not. It's no more the full extent of the theory than "humans need oxygen to live" is the full extent of what we know about the way humans process various gases. But it's the only part of the theory that you seem to retain, despite many attempts to the contrary.
 
Posted by scholar (Member # 9232) on :
 
quote:
Originally posted by Reshpeckobiggle:
quote:
Originally posted by swbarnes2:

You said that you believed a genome contains all the information it needs to generate a wide variety of phenotypes.

Well, you've got a whole genomes for a fair number of organisms at your fingertips. Human, mouse, rat, dog, zebrafish...etc.

So pick one varying trait, like fur color in mice, and show us in the genome of C57L/B6 where all the information for all the other fur colors are kept.

It's all right here. So focus, and show us.

www.ensembl.org

Or admit that you can't find any evidence to support your supposition.

Willful misinterpretation of what I said? I didn't say I believed that is what happened. I just said that I haven't ruled it out as a possibility. And with my limited technical knowledge of genetics, I still haven't. You're insisting that I go and do something that I can't do, because I don't have the training required to do it. Somehow this is supposed to show that I have no right to doubt the theory of Evolution.
If it helps, as someone that theoretically has the technical knowledge, I couldn't do that. You need to get several mice to actually get the full range of alleles.
 
Posted by swbarnes2 (Member # 10225) on :
 
quote:
Originally posted by scholar:
quote:
Originally posted by Reshpeckobiggle:
quote:
Originally posted by swbarnes2:

You said that you believed a genome contains all the information it needs to generate a wide variety of phenotypes.

Well, you've got a whole genomes for a fair number of organisms at your fingertips. Human, mouse, rat, dog, zebrafish...etc.

So pick one varying trait, like fur color in mice, and show us in the genome of C57L/B6 where all the information for all the other fur colors are kept.

It's all right here. So focus, and show us.

www.ensembl.org

Or admit that you can't find any evidence to support your supposition.

Willful misinterpretation of what I said? I didn't say I believed that is what happened. I just said that I haven't ruled it out as a possibility. And with my limited technical knowledge of genetics, I still haven't. You're insisting that I go and do something that I can't do, because I don't have the training required to do it. Somehow this is supposed to show that I have no right to doubt the theory of Evolution.
If it helps, as someone that theoretically has the technical knowledge, I couldn't do that. You need to get several mice to actually get the full range of alleles.
I realized on rereading that Resh's constant flip-flopping between talking about natural selection working on individuals and it working on species cause me to misread his argument. What he wrote was

"Natural selection doesn't simply work on the mutations, it works on the variation within a species. The finches have encoded into their DNA a certain amount of variability in the size of their beaks. No mutations needed"

I though he meant "finches" to mean that every individual finch had multiple alleles to make beaks of any size. Which is dumb, but a common Creationist argument. But he probably meant that there were many different alleles in the population.

Still, he missed the point that the way those variants came about is...by mutation, so there's no mutation-free evolution here.

And in any case, I’m sure that Resh would approve of my caution if I assert that I’m not ruling out my previous assessment of the quote. I’m also not ruling out the possibility that Resh’s computer is powered by pixies, or that he’s logging on from the moon. Ruling things out is dangerous…it leads one to have to pick an argument and defend it.
 
Posted by scholar (Member # 9232) on :
 
I interpreted Resh's statement the same way as you swbarnes. I guess we'll just have to wait and find out what he meant.
 
Posted by 0Megabyte (Member # 8624) on :
 
Oh, that's what Resh was saying! I made the same misinterpretation. It's certainly better than what I thought he said, though, as swbarnes said, there's still the not-too-difficult-to-answer question about how that variation got there.

Though concievably God made multiple finches, with different alleles, or something. I mean, we're talking omnipotent beings here.

But even if he did just up and make them like that, when precisely did he decide to make them, why so recently and not farther back on the fossil record (recent is, er, relative to several hundred million years here, of course) and further, how exactly did it happen? Did they materialize out of nothing? Did some other animal morph, or what, if we're suggesting that God made the finch fully formed, with a large enough starting group to have enough alleles to be spread out?

Further, how do you tell the difference between the alleles that were there originally, and the ones that came later, due to later mutations, which we can and do witness in the world around us?

This isn't sarcastic, either! I'm honestly curious how this idea, if I'm understanding Resh right, would work...
 
Posted by swbarnes2 (Member # 10225) on :
 
quote:
Originally posted by 0Megabyte:


Further, how do you tell the difference between the alleles that were there originally, and the ones that came later, due to later mutations, which we can and do witness in the world around us?

This isn't sarcastic, either! I'm honestly curious how this idea, if I'm understanding Resh right, would work...

I'm glad I wasn't the only person to misread that comment. I actually felt a bit silly about it. But it was ambiguous, and front-loading is a Creationist idea, so it wasn't absolutely crazy that I thought that's what he was saying.

In the magical kingdom where Creationism is real and makes sense, one could look at a genome, and tell which mutations cause the genetic material to degrade, and which ones don't, and one could speculate that the degrading ones were random mutations, and the variants with the same amount of information are god-given variants.

In our world, you can't tell how much "information" an allele has. Sure, you can count how many DNA base pairs it has, or how many amino acids it has. You can measure how well it performs a certain reaction, or how tightly it binds to a particular protein.

But none of that is a measure of information.
 
Posted by scholar (Member # 9232) on :
 
I am a little confused about exactly where the cutoff between micro and macroevolution lies.
 
Posted by Kwea (Member # 2199) on :
 
So are most scientists. [Wink]
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by scholar:
I am a little confused about exactly where the cutoff between micro and macroevolution lies.

Technically, it's the difference between an evolutionary change that results in speciation and one that does not, but since multiple instances of the latter tend to result in the former, the distinction isn't particularly black and white.
 
Posted by scholar (Member # 9232) on :
 
To make it worse, I am fuzzy on speciation. Working with phage and bacteria, definitions of species that involve mating don't make much sense. [Smile]
 
Posted by Shigosei (Member # 3831) on :
 
Here is an interesting paper Inhibition of Mutation and Combating the Evolution of Antibiotic Resistance

Basic gist: A type of E. coli that causes infection was engineered to be far less able to mutate. The non-engineered E. coli was put into a mouse, which was given antibiotics at a dose that would make things harder for the bacteria but not kill them. The same thing was done with the engineered E. coli.

Then the scientists took the bacteria out and put them on petri dishes. They looked to see how much antibiotic was needed to inhibit growth. In the control (non-engineered) strain, there were several resistant strains, and they were able to withstand more antibiotic than any of the bacteria were during the same test before it was in the mouse.

The bacteria that were engineered, on the other hand, did not have much change in resistance after being in the mouse.

So not only did one set of bacteria have a trait that it did not have before, but the other set that wasn't allowed to mutate did not have that trait. Therefore:

1. New traits can appear in populations.

2. Mutations are necessary for at least some of these traits to occur.
 
Posted by mr_porteiro_head (Member # 4644) on :
 
To play devil's advocate here, how are they able to tell that the engineered bacteria doesn't mutate as much?
 
Posted by Shigosei (Member # 3831) on :
 
There's a pathway for activating DNA repair proteins that encourage mutations when the DNA is significantly damaged. It was removed. The actual mutation rate was counted by the rate at which new colonies formed on antibiotic petri dishes (which would only happen when that colony acquired resistance). That's circular if you don't believe that the resistance developed because of mutations, of course.

There's also the sequencing data. The engineered bacteria that were resistant had a particular type of mutation called a deletion (three nucleotides were missing from a gene). The normal bacteria ended up with both deletions and substitutions (switching nucleotides without changing the length).
 
Posted by mr_porteiro_head (Member # 4644) on :
 
quote:
The actual mutation rate was counted by the rate at which new colonies formed on antibiotic petri dishes (which would only happen when that colony acquired resistance). That's circular if you don't believe that the resistance developed because of mutations, of course.
Yeah. That circularity is what I was wondering about. [Smile]
 
Posted by suminonA (Member # 8757) on :
 
Resh, thanks for your invitation to participate in this thread too. But, by the time I read all the previous posts, I realised my “plus” with my dogs and Noah's Ark is unnecessary, as the discussion has got to touching most (if not all) of my intended points.

Still, I'll read this thread and I'm sure I'm going to learn interesting things in it.


A.

PS: One (unasked for) piece of advice: Have patience, the potential knowledge is worth it. Good luck!
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by mr_porteiro_head:
quote:
The actual mutation rate was counted by the rate at which new colonies formed on antibiotic petri dishes (which would only happen when that colony acquired resistance). That's circular if you don't believe that the resistance developed because of mutations, of course.
Yeah. That circularity is what I was wondering about. [Smile]
Hence the second paragraph of Shigosei's post. [Smile] The scientists confirmed the presence of novel mutations by sequencing.
 
Posted by fugu13 (Member # 2859) on :
 
scholar: even with large, multicellular organisms, species lines are often very blurry. This is unsurprising, given that the definition is a convenience for humans not something reflecting any concrete distinction in nature.
 
Posted by mr_porteiro_head (Member # 4644) on :
 
Yes, I read all of Shigosei's post.
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by mr_porteiro_head:
Yes, I read all of Shigosei's post.

Sorry, I didn't mean to imply that you hadn't. But he did address your follow-up in that post.
 
Posted by El JT de Spang (Member # 7742) on :
 
Shigosei's a she.
 
Posted by BlueWizard (Member # 9389) on :
 
Here's an interesting thought, in every scientific stand the church has taken over its many centuries of existence, has been consistently WRONG every time. I would say that is a pretty reliable track record, and can easily be applied to their stand on Evolution.

Scientist and the Theory of Evolution can and will change as new knowledge of the natural world comes into being. Scientists are more than willing to modify its theory to match the evidence. Just as they will gladly modify the theories of electricity, chemistry, and physics when new evidence comes to light.

The Church on the other hand will hold rigidly to archaic unfounded beliefs until such time as they become a laughing stock for doing so, at which time they will claim they knew it all along.

It takes a decade to change science, it takes a century or more to change religion.

Here is a news bulletin, the earth is not flat, the earth is not the center of the universe, the sun does not revolve around the earth, vacuum is not the work of the devil, little minute creatures do live in pond water, colored lights can indeed flash across the sky, modern medicine is not the work of the devil, electricity is not the work of the devil, etc... etc...

Your track record speaks for itself.

Modern science will gladly modify its views to fit the currently available knowledge of the natural world.

Modern religion will cling to outdated outmoded beliefs until doing so is so ridiculous and humiliating and embarrassing that they would lose all credibility in continue in such foolishness.

I have the easy position, all I have to do is wait until you finally come to your senses. You on the other hand have an unfounded untenable position that is and will continue to make you a laughing stock until such time as the embarrassment will force you to finally concede.

To deny science is to deny nature and to deny nature is to deny God. Since, in my view, you are the one denying God, I can only conclude that eventually you will lose this argument. The Hand of God in the natural order will out. Unfortunately, I don't see that coming for a long long time.

I don't even really need science to dispute you, just a combination of commons sense and a working knowledge of your track record in this area, plus a LOT of patience.

Just one man's opinion.

Steve/bluewizard
 
Posted by suminonA (Member # 8757) on :
 
Hypothetical question : Would you change your mind if you were in possession of the Absolute Truth ?

I mean, I can perfectly understand that someone who believes to be in possession of the A.T. to be "very hard" (read impossible) to accept another "truth", what there is to see is how does that someone know to have such a thing in possession in the first place. [Smile]

A.
 
Posted by Troubadour (Member # 83) on :
 
Or to put it in another, less aggressive way:

In the 16th century, the idea of an heliocentric universe was heresy. It went against the teachings of the church of the day and was backed up by scripture - quite convincing and solid scripture, if you want to use the bible as literal truth.

Of course, at the time that Copernicus, Kepler and Galileo made their observations, they faced problems similar to what Resh's problem is with evolution: that there was an awful lot of evidence, much of it directly observed - but until humans could leave the planet and view for themselves the nature of the universe, they could never say that this could be seen 'in action'.
 
Posted by dkw (Member # 3264) on :
 
quote:
Originally posted by BlueWizard:
Here's an interesting thought, in every scientific stand the church has taken over its many centuries of existence, has been consistently WRONG every time. I would say that is a pretty reliable track record, and can easily be applied to their stand on Evolution.


My church accepts evolution. I guess it must not be true. I'll look for a different theory, then.
 
Posted by MattP (Member # 10495) on :
 
quote:
My church accepts evolution. I guess it must not be true. I'll look for a different theory, then.
It's the positions that churches have taken up in opposition to science that have been wrong. Nodding and saying "sure, why not" to a scientific theory is usually the safe way to go. If that's what your church does, then good!
 
Posted by dkw (Member # 3264) on :
 
When theologians make pronouncements about science they tend to make incredible asses of themselves. Likewise when scientists make pronouncements about God or religion.
 
Posted by Paul Goldner (Member # 1910) on :
 
"Likewise when scientists make pronouncements about God or religion."

Religion, perhaps. God, not so much. Some of the most profound statements about god I've seen have come from scientists, whether religious scientists or atheist scientists.

That said, I'd be interested if you could find a statement by a scientist, on the subject of god, that has proven to be wrong?
 
Posted by dkw (Member # 3264) on :
 
I was thinking more about announcements about how this or that discovery proves that God doesn't exist. They generally show a profound misunderstanding about what religious people mean by "God."
 
Posted by Paul Goldner (Member # 1910) on :
 
Hrm. I guess I haven't seen too many (read: I haven't seen )scientists say that a discovery proves god doesn't exist. Or perhaps it just didn't register when I did read it.

Examples would be appreciated.
 
Posted by TomDavidson (Member # 124) on :
 
I've seen Dawkins, for one, argue that certain specific types of God can't exist. But I don't recall any "this discovery proves the non-existence of God" publications. Doesn't mean there haven't been a bunch, though.
 
Posted by King of Men (Member # 6684) on :
 
I suspect that journalists will often put such statements in the mouths of scientists because it makes good copy.
 
Posted by scholar (Member # 9232) on :
 
I hate to tell this anecdote since it is the exception and not the rule, but it relates. One of the science profs was given an hour to talk about whatever he wanted. A large part of it was about idiots who believe in religion. He went on to claim that within 50 years, science will have proven that man does not have souls and God cannot exist. I thought he was a raving idiot, but other people seemed to find him interesting. Most of the scientists I know are respectful of religion though and many attend church regularly. Most do find IDers annoying though (but would be ok if IDers stopped claiming ID to be a science).
 
Posted by The Rabbit (Member # 671) on :
 
quote:
Originally posted by BlueWizard:
Here's an interesting thought, in every scientific stand the church has taken over its many centuries of existence, has been consistently WRONG every time.

You really need to add a modifier between "the" and "church" since there are hundreds of different churchs in the world and many of them don't fit the description you give.

quote:
Originally posted by dkw:
When theologians make pronouncements about science they tend to make incredible asses of themselves. Likewise when scientists make pronouncements about God or religion.

I think that the problem with this statement is that no person is only a "theologian" or only a "scientist". As people, we all play many rolls. There are even some out there who are both "theologians" and "scientists". I think what Dana was actually saying (and feel free to correct me if I'm wrong), was that when people try to draw conclusions about science based on theological reasons or conclusions about theology based on scientific reasons they tend to make asses of themselves.

[ December 11, 2007, 09:40 PM: Message edited by: The Rabbit ]
 
Posted by Samprimary (Member # 8561) on :
 
The only positive thing I can say about this thread is that it is not a person hijacking another thread that was doing better before.
 
Posted by dkw (Member # 3264) on :
 
Thanks Rabbit, that is indeed a better phrasing of what I was trying to say. I even thought about a few scientist-theologians when I was writing it but I was in a hurry to get out the door and didn't take the time to be as precise as I should have been.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Based on his statements, Blue Wizard appears not to be an example of the type of person who finds any need to differentiate between religious types. His (mostly correct, as far as the often biased historical record states) rant is directed at the Catholic Church. They were wrong about a lot of things, not least of which was the Christian religion. Hence, Protestantism. Maybe he assumed I was Catholic...? (Assuming that post was directed at me.) They seem to be doing a bit better now. Still playing catch-up, though.

To clarify the point of confusion, I was talking about the gene pool of Finches (and any other species group) in general. If all finches came from a single parental pair (as, I believe, both Evolution and the Bible would have you believe), then what you guys are saying is that all the varieties of beak sizes are not possible within that gene pool and would only be possible from mutations. If this is true, then as far as I understand if you were to remove a male/female pair from the parent population and they both had very small beaks, it would require some mutation in order for any of their offspring to acquire beaks as large as might be found in the parent population. Do correct me if I'm wrong.

However, without invoking any hypothetical mutations, is it possible for a single male/female pair of a species to hold between them all the genetic material necessary to account for all the variations that are found within that species? For example, is it possible that an original pair of dogs could have accounted for all the applied variations within the species, without mutations?

Secondly, and I don't even know if that's a good question, but I'm asking it, but if mutations are required, are degrading mutations sufficient? In other words, if you had a hypothetical perfect pair of a species, would all the variation that you find in that species require at least one -I don't know how this would be phrased- improving mutations, or mutations that add data to the genes? Or would mutations that only take away data from the DNA do all that was required to explain the variations?
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
quote:
Originally posted by scholar:
I hate to tell this anecdote since it is the exception and not the rule, but it relates. One of the science profs was given an hour to talk about whatever he wanted. A large part of it was about idiots who believe in religion. He went on to claim that within 50 years, science will have proven that man does not have souls and God cannot exist. I thought he was a raving idiot, but other people seemed to find him interesting. Most of the scientists I know are respectful of religion though and many attend church regularly. Most do find IDers annoying though (but would be ok if IDers stopped claiming ID to be a science).

I think that what IDers are doing (and I guess that's what I am, but I'm not a scientist) are trying to reset the rules of what actually count as science. They're saying that although the current state of scientific inquiry dictates that only Naturalistic mechanisms are admissible as evidence, this does not mean that only Naturalistic causes are possible. They would like to change the ground rules of science to allow for other possibilities.

I mean, if you think about it, "science" is just a human concept, it's not an objective thing that we are tapping into. If everyone decided that science was something else, then that something else is what science would be, right?
 
Posted by fugu13 (Member # 2859) on :
 
Evolution would not have you believe all finches came from a single parental pair. Evolutionary change (usually) happens gradually along a multidimensional continuum which tends to appear to have an excluded middle when looked at in retrospect.

I'll bring up an example of finches I've brought up again and again in evolutionary threads. Imagine a population of finches living on an island where there are many ground predators and lots of fruits. Imagine some of them are blown to an island that has very few ground predators and lots of nuts. Finches on the latter island that have larger beaks for nut cracking, that spend more of their time on the ground (and thus less energy flying) will be selected for. Over time, the finches will become some other species of bird, given a strong enough selection pressure, with a larger beak, better suited to living on the ground most of the time.

However, at no point will there be a break in their development. The population will be interfertile all the time. There is no point we will be able to say "here is where it stopped being a finch", yet if the change becomes extreme enough, we will look at the beginning and the end and say, "these are different".

And no, we know of not a single pair where a single species could have held all genetic variation found in a species. Since evolutionary theory doesn't predict that will occur much, if ever, that's not much of a problem. Now, sometimes when species are mostly founded on a small population it is a matter of polyploidy, in which case there's a lot of spare 'space' in their genome for development. They can have a mutation in a gene and still have a working copy of the gene elsewhere.

Btw, mutations don't generally 'take away data' from the DNA, because there is no definition of 'data' held by DNA. Do you have something more specific in mind?
 
Posted by fugu13 (Member # 2859) on :
 
We have plenty of fields that commonly incorporate non-naturalistic thinking. Use one of them.

Also, there's nothing in science against non-naturalistic explanations. There are things against non-testable explanations, since science is about explaining things. Why should things that can explain nothing (in the sense of, provide testable predictions that turn out at least somewhat successful) be incorporated into science?

It isn't like science is totally antithetical to that traditionally called non-naturalistic. There are periodically experiments trying to identify effects due to prayer, for instance. Strangely, the presence of prayer in any controlled situation is found to have no explanatory power for outcomes.
 
Posted by Troubadour (Member # 83) on :
 
quote:
Originally posted by Reshpeckobiggle:
quote:
Originally posted by scholar:
I hate to tell this anecdote since it is the exception and not the rule, but it relates. One of the science profs was given an hour to talk about whatever he wanted. A large part of it was about idiots who believe in religion. He went on to claim that within 50 years, science will have proven that man does not have souls and God cannot exist. I thought he was a raving idiot, but other people seemed to find him interesting. Most of the scientists I know are respectful of religion though and many attend church regularly. Most do find IDers annoying though (but would be ok if IDers stopped claiming ID to be a science).

I think that what IDers are doing (and I guess that's what I am, but I'm not a scientist) are trying to reset the rules of what actually count as science. They're saying that although the current state of scientific inquiry dictates that only Naturalistic mechanisms are admissible as evidence, this does not mean that only Naturalistic causes are possible. They would like to change the ground rules of science to allow for other possibilities.

I mean, if you think about it, "science" is just a human concept, it's not an objective thing that we are tapping into. If everyone decided that science was something else, then that something else is what science would be, right?

But science is something very specific and ID doesn't qualify and it's disingenuous to teach it in a science classroom as if it meets those rigourous standards.
 
Posted by Samprimary (Member # 8561) on :
 
quote:
I think that what IDers are doing (and I guess that's what I am, but I'm not a scientist) are trying to reset the rules of what actually count as science.
By their own admission they wanted to use a definition of science that would accept astrology as being scientific.

Which is what you've been doing too. And with ghastly few exceptions, nobody else in the ID movement 'is a scientist' either.
 
Posted by swbarnes2 (Member # 10225) on :
 
quote:
Originally posted by Reshpeckobiggle:


To clarify the point of confusion, I was talking about the gene pool of Finches (and any other species group) in general. If all finches came from a single parental pair (as, I believe, both Evolution and the Bible would have you believe)



No, evolution doesn't predict that at all. It says that there was a population of birds which were not finches, and over time, they changed, becoming more and more finch-like, until they were what we would be comfortable labeling "finches".

quote:
then what you guys are saying is that all the varieties of beak sizes are not possible within that gene pool and would only be possible from mutations.


Even if you did start with some magical first pair that had genetic differences, that first pair would have a common ancestor, and the reason that those two individuals have differnt genes is because of mutations.

There's no getting away from mutations.

quote:
If this is true, then as far as I understand


But you don't understand! That's what we keep trying to tell you, and you refuse to accept! You don't understand evolution!

quote:
if you were to remove a male/female pair from the parent population and they both had very small beaks, it would require some mutation in order for any of their offspring to acquire beaks as large as might be found in the parent population. Do correct me if I'm wrong.


You are wrong. Let me guess, since you didn't believe evolution, you figured that flunking high school genetics was okay.

Well, if you'd passed, you would have known that having a large beak size could be a recessive trait, in which case the parents would not exhibit it, but they could be carriers, and their offspring could therefore manifest it.

quote:
However, without invoking any hypothetical mutations, is it possible for a single male/female pair of a species to hold between them all the genetic material necessary to account for all the variations that are found within that species?


No. Humans have hundreds of alleles for some genes. The most any individual can carry is 2.

2 << 100. Or did your disbelief in evolution cause you to ignore math too?

quote:
For example, is it possible that an original pair of dogs could have accounted for all the applied variations within the species, without mutations?


No, it's not possible. And 20 people are going to tell you that, and you will still refuse to "rule out the possibility"

And then you will complain that everyone is just telling you things, and expecting you to believe them at their word.

And really, since this is your claim, its up to you to prove it, not up to us to disprove it.

So go prove it. Go the latest dog assembly in ensembl, or whatever organism you like, and show us where all this genetic diversity is hiding.

You won't read. You won't listen. You claim that's not innovative enough for you.

Well, looking up your own evidence would be innovative for you, and I'm out of ideas as how else to get you to see that you are wrong.

quote:
Secondly, and I don't even know if that's a good question, but I'm asking it, but if mutations are required, are degrading mutations sufficient?


Would you know a degrading mutation if it bit you in the face?

Go back to the post I made in the other thread with those short DNA sequences.

If one is the orignal, and one is degraded, why don't you tell us which is which? Count up the information, and show us which has less, and by how much, if you can.

If you can't, then stop talking about information in genes as if you had some idea of how to count that.
 
Posted by Tresopax (Member # 1063) on :
 
quote:
Natural selection is a tautology because it is self-evidently true. It also, by virtue of being a tautology, contains exactly *zero* explanatory power.
I have to say that I don't understand this argument. For one thing, that's not the definition of "tautology". But more importantly, why would tautologies and other self-evidently true things contain no explanatory power? Before that is explaned, I don't see the point of going further along this line of argument. I'd say self-evident things DO often have explanatory power.

quote:
But science is something very specific and ID doesn't qualify and it's disingenuous to teach it in a science classroom as if it meets those rigourous standards.
Tons of stuff that is taught in science classrooms is not, strictly speaking, science. For instance, we studied how the proponents of the heliocentric model of the solar system were persecuted by the church when I took science in high school. That is pretty clearly history - not science - but it was still taught in the science classroom, and I don't think anybody was confused by the notion that all sorts of science-related things can be discussed in science class.
 
Posted by orlox (Member # 2392) on :
 
http://sciencenow.sciencemag.org/cgi/content/full/2007/1210/1
 
Posted by Epictetus (Member # 6235) on :
 
quote:
Tons of stuff that is taught in science classrooms is not, strictly speaking, science. For instance, we studied how the proponents of the heliocentric model of the solar system were persecuted by the church when I took science in high school. That is pretty clearly history - not science - but it was still taught in the science classroom, and I don't think anybody was confused by the notion that all sorts of science-related things can be discussed in science class.
True, but the history behind an idea, while anecdotal, is useful for explaining where an idea came from and how it's been accepted over time. People who have been promoting ID have largely promoted it as science or an "alternative" theory to evolution. There's a big difference between anecdotal information and theology being taught as science.
 
Posted by Paul Goldner (Member # 1910) on :
 
"That is pretty clearly history - not science - but it was still taught in the science classroom, and I don't think anybody was confused by the notion that all sorts of science-related things can be discussed in science class."

What we DON'T teach in science classrooms, though, are anti-scientific ideas, or ideas that are contradicted by the scientific method, as if they are science.

If someone in class asks me about ID, I have no problems answering questions about it for a few minutes... but part of the answer will be "Its an idea that is arrived at by ignoring the scientific method."
 
Posted by Troubadour (Member # 83) on :
 
quote:
Originally posted by Tresopax:
quote:
Natural selection is a tautology because it is self-evidently true. It also, by virtue of being a tautology, contains exactly *zero* explanatory power.
I have to say that I don't understand this argument. For one thing, that's not the definition of "tautology". But more importantly, why would tautologies and other self-evidently true things contain no explanatory power? Before that is explaned, I don't see the point of going further along this line of argument. I'd say self-evident things DO often have explanatory power.

quote:
But science is something very specific and ID doesn't qualify and it's disingenuous to teach it in a science classroom as if it meets those rigourous standards.
Tons of stuff that is taught in science classrooms is not, strictly speaking, science. For instance, we studied how the proponents of the heliocentric model of the solar system were persecuted by the church when I took science in high school. That is pretty clearly history - not science - but it was still taught in the science classroom, and I don't think anybody was confused by the notion that all sorts of science-related things can be discussed in science class.

Yeah, but Tres, it's taught as an outmoded and ultimately false view of the universe and explaining how our understanding of the universe progressed from geocentric to heliocentric has numerous lessons pertinent to science.

I feel quite certain that if ID were to be taught in school science class that they wouldn't want it taught in this context! Of course, this is exactly the context it should be taught in, but hey.
 
Posted by King of Men (Member # 6684) on :
 
There is such a thing as the history of science, which might reasonably be taught in a science course. Especially when it's relevant to understanding how the scientific method works and doesn't work.
 
Posted by The Rabbit (Member # 671) on :
 
quote:
Originally posted by Reshpeckobiggle:
[QB]If this is true, then as far as I understand if you were to remove a male/female pair from the parent population and they both had very small beaks, it would require some mutation in order for any of their offspring to acquire beaks as large as might be found in the parent population. Do correct me if I'm wrong.

Its not necessarily that simple be because beak size isn't the result of only one gene and many characteristics are recessive. A bird can carry genes needed for big beaks but not necessarily have a big beak. Lets pick a simply example. Blue eyes are a recessive trait so if someone has blue eyes they can't carry the gene for brown eyes. So if we were separate people with blue eyes from the rest of the population and only allow blue eyed people to mate with blue eyed people, they would never have any brown eyed children unless there were mutations.

quote:
However, without invoking any hypothetical mutations, is it possible for a single male/female pair of a species to hold between them all the genetic material necessary to account for all the variations that are found within that species? For example, is it possible that an original pair of dogs could have accounted for all the applied variations within the species, without mutations?
No this isn't possible. Each individual contains only two copies of each gene. A single mating pair can carry at most 4 variants of a given gene. We know that within humans there are hundred and sometimes thousands of variants for different genes.

quote:
Secondly, and I don't even know if that's a good question, but I'm asking it, but if mutations are required, are degrading mutations sufficient? In other words, if you had a hypothetical perfect pair of a species, would all the variation that you find in that species require at least one -I don't know how this would be phrased- improving mutations, or mutations that add data to the genes? Or would mutations that only take away data from the DNA do all that was required to explain the variations?
This isn't a distinction that is commonly made. The Most mutations don't either take away data from the DNA or add it. (Although mutations of that nature do occaasionally happen). Most mutation change the DNA sequence. If the DNA were a piece of text, most mutations would neither add lines nor delete lines, they would change some letter in the text. When scientists compare the genes for two individuals, they look at how many letters in the gene are different.
 
Posted by MightyCow (Member # 9253) on :
 
I've been reading, "The Blind Watchmaker", which reads almost as though 10+ years ago Richard Dawkin traveled into the future, read Resh's threads, and wrote an entire book specifically addressing them in a very clear, and I might add quite interesting, way.

Really, it's quite good and has some really interesting stories about animals. I'm sure it wouldn't convince anyone who refuses to be swayed, but it's a great read anyway.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
OK, I was just asking. Thanks to all of you who answered me politely. That was a long post of swbarnes, but I didn't read any of it. If he had anything interesting to say could someone bring it up?

So if an entire species doesn't have a single male/female pair as it's common ancestor, I take it that the idea is that a population of a species, separated from its parent group, develops over time until the entire population is a separate species from what it originally was? Is this the generally accepted manner in which most or all new species have arisen? If so, are there any known exceptions?

Fugu said this: "However, at no point will there be a break in their development. The population will be interfertile all the time. There is no point we will be able to say 'here is where it stopped being a finch', yet if the change becomes extreme enough, we will look at the beginning and the end and say, 'these are different.'"

Now, is the process I described in the previous paragraph a logical deduction of what must happen because although the changes are so gradual, the fossil record does not ever show this extremely gradual process? And I don't mean something as small as very similar species whose major distinguishing feature is a different size beak. I mean all the huge gaps between whatever led to a bat, and the bat itself.

In other words, is this process (which I understand is essentially a part of punctuated equilibrium) something that shows that Evolution actually happened in spite of what the fossil record shows? Because if so, I think that the idea that the fossil record is just "icing on the cake" might actually be wishful thinking.

Tresopax, I know what the definition of a tautology is. I was alluding to the idea (perhaps not necessarily true) that something that is a tautology may be so by mere virtue of the fact that it is self-evidently true, and one cannot desrcibe what that something is without formulating a tautology. By that reasoning, natural selection is a tautology by the strength of its "self-evident-ness." That reasoning probably has some flaws in it, but I haven't gotten into it. It doesn't really matter to me because like I said before, the process of natural selection does seem to be self evident.
 
Posted by 0Megabyte (Member # 8624) on :
 
Of course, there is the problem that you seem to be ignoring, if evolution had nothing to do with all those organisms:

Where did those fossil species come from, how did they get there, through what mechanism did these different kinds of species exist at different times, where did the current species, that obviously did not exist back then, come from, and where are these processes occuring today, where can we see them, and/or how did those processes stop?

This is just wondering what a decent explanation would be.
 
Posted by 0Megabyte (Member # 8624) on :
 
I mean, seriously, let's assume we know nothing of evolutionary theory, and/or it's totally false:

The biggest question is: How the HECK did those animals and plants that are so very different, get there, where did they go, and why are no modern animals there? How did they occur? etc etc etc.

Further, I'd ask questions about genetics, some of which are very, very interesting.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
I wasn't ignoring it, Megabyte, I just didn't think it was pertinent.I'm not trying to ascertain what precisely did happen. I'm just asking whether the official explanation holds water, or if it has some pretty gaping holes in it. You're still requiring that before I disregard one theory as impossible or highly unlikely, or at the very least missing some very important and basic premise, that I must first replace it with something better, or fill in that missing premise. A sound strategy if we are to avoid having to abandon the scientific process altogether, but not requiring it of myself allows me in the meantime to entertain the notion that an unscientific cause plays a part.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
I think the assumption would be that they were created somehow, and something happened in the past that killed off very many of them. Then all the efforts would be directed toward how they were designed, and what the evidence shows about past events that killed off so many creatures. This is what people believed for thousands of years anyway. I think without Evolution getting in the way, they would have found all kinds of confirming evidence for a worldwide flood, especially if they took that as a fact of history and that's what they were looking for.
 
Posted by 0Megabyte (Member # 8624) on :
 
"A sound strategy if we are to avoid having to abandon the scientific process "

"but not requiring it of myself allows me in the meantime to entertain the notion that an unscientific cause plays a part. "

Thank you for being explicit about previous points I gave about you, but regardless:

It's good to try to poke holes in theories. But when a theory is useful, and actually has uses, like evolutionary theory does currently, abandoning it in a practical way before we have something to replace it with would be, well, impractical.

It'd be like abandoning all Newtonian physics as soon as we realized Mercury's orbit wasn't what the theory said it would be.

However, carry on asking these questions.

But part of my point is that asking where these fossils came from is a really useful question, and is pretty key to understanding what happened. Why they're there, and why current animals are NOT there, is big. Creating a theory to explain that is a big deal.

But to respond to your questions in the post I responded to, let's see:

You're asking, if I understand you correctly, if the concept that, basically, when a group of animals of a species are separated from another group through the various ways that occur, either geography or death or refusal to mate for one of the many reasons subgroups refuse to mate with each other, etc, and that that separation then allows them to slowly drift genetically, due to mutation, into separate species, while each point inbetween can mate with the groups in time before and after, etc, is working in spite of the fossil record?

Am I getting that right, I'm honestly trying to be sure if I understand your question.

Anyway, answering in response to this, I have several points:

Ring species, for one. In which that very thing has been observed in the real world. If you'd like, I'll find my examples. I can think of two off the top of my head, some species of iguana or something in California and Oregon, and some species of seagull, as well. I'll get you the specific species names, and the interesting data, as soon as I get home from work tonight.

Basically, with the seagulls at least, at one location there are two species, that are defintiely different, and cannot mate with each other. However, in each direction there are other groups of gulls that those two species can also mate with, and then other groups those can mate with, and so on, if you go around the circle in an unbroken line, until eventually you find the other species is part of that same line, where each group can mate with the ones directly East and West of themselves, thought at the two extremes they're different enough to literally be different species.

You know, that description sucked, I'll just cite my sources tonight and hope someone else explains before I get back if you have any trouble understanding my unclear words.

However, these ring species do exist. Theyr'e real. And the separate species are clearly different, with different traits. They aren't as different, say, as birds and lizards, of course. But they're certainly different species. And once species are separate, and mutations continue to accrue without interference from other groups... anyway, I'm not being clear here, I'm sure.

Second: the fossil record basically shows that a bunch of different species existed in the past, in snapshots of periods of time, and different groups of species existed in different periods of time, and our current species didn't exist right then. Further, they suggest that as time went on, the animals of a certain time period, at least some of them, looked similar, though different in some significant ways, to the ones that existed before, and also similar, though different in some significant ways, to animals of later ages.

Take those suspiciously whale-like creatures that lived on land in one age, the creatues that looked similar to those creatures, but lived in water, and then later still, more creatures that looked similar to those previous ones, but more similar to modern whales in multiple respects.

Seriously, I can show multiple examples, but it'll take me a couple minutes and I have work in 20 minutes, so if you can wait six hours I'll be back.

But anyway, it's an interesting point to keep in mind, whatever's true.

Anyway, as for your statement about the whole "group" thing being a part of punctuated equilibrium theory, I was udner the impression it was not specifically a part of that, though I could be wrong. I could show you examples of just that happening in the real world, too, or at least in laboratories.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
No, don't worry about the ring species things. I know precisely what you're talking about, particularly with the gulls. It's a good illustration of a process that theoretically occurs over time, but represented in the here and now. Therefore, I find this to be empirical evidence of a process that Evolution requires, and quite different from most examples of so-called "evidence" for Evolution.

This is why I don't think ring species are very strong evidence for Evolution as a whole. The process they are akin to is a process that is required to explain large changes over time that have resisted detection in the fossil record. It's like a biologist (or paleontologist) is faced with a huge gaping hole between every major group of species, and then points to ring species and says "this is why you don't see any evidence of change in the fossil record." Not that it's wrong (though I think it is), but it seems somewhat like grasping at straws.

[edit] Not to mention my earlier complaint (in the earlier thread) that ring species only demonstrate a level of change that does not approach what needs to be explained in order for Evolution to be accurate.
 
Posted by swbarnes2 (Member # 10225) on :
 
quote:
Originally posted by Reshpeckobiggle:
The process they are akin to is a process that is required to explain large changes over time that have resisted detection in the fossil record.



Right. The way that the gradual evolution of the mammal ear resisted detection in the fossil record...

Oh yeah, it didn't. You admitted that the record was there. You just thought it didn't exist, and you were wrong.

Your proclamations of what the fossil record does and doesn't show are wrong, and worthless. You proved that yesterday. You just don't know what the fossil record shows.

Your proclaimaitions of what the theory of evolution predicts about the origin of species are also wrong, and just as worthless. You just don't know what the theory of evolution says.

If you are going to ignore me becuase you find the truth insulting, then go on and do so. Everyone else will understand what that says about your character.
 
Posted by fugu13 (Member # 2859) on :
 
The fossil record shows that extremely gradual process all the time. We're routinely running into groups of fossils of which some seem to be different species, but with which we can find very similar fossils that have very similar fossils that have very similar fossils, all the way to the ones that we call different from the first ones.

An excellent set of examples are the horse-related/ancestral fossils.
 
Posted by Samprimary (Member # 8561) on :
 
quote:
That was a long post of swbarnes, but I didn't read any of it. If he had anything interesting to say could someone bring it up?
Man, you're running out of quips that don't make you sound purposefully ignorant :/
 
Posted by 0Megabyte (Member # 8624) on :
 
Oh, come on!

I just summoned a number of links, and a decent arguement, as I promised I would, and the stupid hatrack refuses to post my post, and then gets rid of the whole thing?!

*Cries* I spent the last half hour on this post that none of you guys got to see... and I have to wake up in five hours, and... and... AHHHHHHH!

Why?! Why, nonexistent Christian God, why?!

Buddha, Zeus, Odin, Quetzecotl, Ahura Mazda, Amon-Ra, Amaterasu, all of you, why?!
 
Posted by suminonA (Member # 8757) on :
 
Because you don't write your LONG posts in a text editing application. [Razz]

A.
 
Posted by Samprimary (Member # 8561) on :
 
Hatrack was pre-emptively avoiding your argument for you.

And wait a minute. Amaterasu and Ahura Mazda get to exist, but not God?
 
Posted by Tresopax (Member # 1063) on :
 
quote:
What we DON'T teach in science classrooms, though, are anti-scientific ideas, or ideas that are contradicted by the scientific method, as if they are science.
This isn't true. For instance, I was taught in middle school science class that electrons were little balls of mass that traveled in defined circular paths around the nucleus of an atom. This has long been contradicted by the scientific method, yet it was nevertheless taught to me as if it was scientific fact.

quote:
Yeah, but Tres, it's taught as an outmoded and ultimately false view of the universe and explaining how our understanding of the universe progressed from geocentric to heliocentric has numerous lessons pertinent to science.
But it is still history being taught in a science class, thus demonstrating that it is definitely NOT true that only claims within the strictly defined bounds of science are discussed in science classes. We also extensively discussed math in science class - that too is not something derived from the scientific method.

On that note, there was at least a small section in the book on creationist disagreements over evolution. I don't think anybody in the class was confused by it. Nobody thought that, merely by discussing the fact that some people disagree with evolution, the book was implying creationism was supported by science.

quote:
Tresopax, I know what the definition of a tautology is. I was alluding to the idea (perhaps not necessarily true) that something that is a tautology may be so by mere virtue of the fact that it is self-evidently true, and one cannot desrcibe what that something is without formulating a tautology. By that reasoning, natural selection is a tautology by the strength of its "self-evident-ness."
Being self-evident is never enough to make something a tautology, though. That's not what a tautology is.

A tautology is something that has to be true because of its logical structure. A logical argument is made up of two parts: the actual logic itself (IF, THEN, NOT) and the propositions that the logic manipulates ("dogs can bark", "pigs are pink", "the ocean is big"). So, you could make a logical claim like "IF dogs can bark THEN pigs are pink". If you took out the propositions then it would look something like this: "IF a THEN b". You are left with only the logical structure.

A tautology is when you can take out the propositions, and yet the statement still must be true simply because of the logical structure. "IF a THEN b" is not a tautology because we can imagine plenty of things we could substitute for "a" and "b" which would make the statement false. For instance, "IF dogs can bark THEN dogs are plants" is false. In contrast imagine this logical structre: "IF a AND b, THEN a". No matter what proposition we substitute for "a" and "b", any claim that follows this logical structure must be true, by virtue of the logical structure itself. "IF dogs can bark AND dogs are plants, THEN dogs can bark" is true. "IF a AND b, THEN a" is a tautology.

There are many self-evident claims that are not tautologies. For instance, "IF God is perfectly good THEN God would only do good things" is self-evidently true, but it is not a tautology because the logic is "IF a THEN b" which is not always true.

I don't know what the logical structure of the argument for evolution is, but I'm sure it's not of the sort where the logical structure by itself proves it to be true. Even if it were self-evident, it would not be a tautology.

Having said that, I don't see why being self-evident or beint a tautology are bad things.
 
Posted by Mike (Member # 55) on :
 
swbarnes2, I understand how frustrated you must be, but do you really think that constantly insulting Resh (even if you feel it is deserved) is going to shame him into "seeing the light"? Do you really expect to be effective here? No matter how accurate you are or how strong your arguments, all you are doing is strengthening Resh's resolve to be unconvinced.

I honestly wish I could say otherwise, but judging from this thread I would not want to have you arguing for my side of any debate.
 
Posted by Mike (Member # 55) on :
 
Hey Resh, question for ya. You said earlier something to the effect of "understanding implies belief and vice versa". Now I happen to disagree with this statement, but I can't remember whether you do or not. Care to refresh my memory? Thanks!
 
Posted by suminonA (Member # 8757) on :
 
quote:
Originally posted by Tresopax:
There are many self-evident claims that are not tautologies. For instance, "IF God is perfectly good THEN God would only do good things" is self-evidently true, but it is not a tautology because the logic is "IF a THEN b" which is not always true.

- - - emphasis added - - -

You went too far with this example. By many definitions of "perfectly good" and "only do good things", the two are the same. I mean they DO mean virtually the same thing. So you're saying "IF a THEN a", which is a tautology.

It's actually close to "IF you are tall THEN you are at least 6 feet tall". Being able to formulate the same thing in two different ways doesn't build "tautology free" statements. [Smile]

A.
 
Posted by Javert (Member # 3076) on :
 
quote:
This isn't true. For instance, I was taught in middle school science class that electrons were little balls of mass that traveled in defined circular paths around the nucleus of an atom. This has long been contradicted by the scientific method, yet it was nevertheless taught to me as if it was scientific fact.
Then your science teacher was at fault. Because that is scientific theory. And any good science teacher, or at least the text book, should explain that what is taught in science classes are the best theories we have given the evidence, not facts that are absolutely true and can never be changed.
 
Posted by 0Megabyte (Member # 8624) on :
 
Samp:

Eh? Get to exist?

Well, Ameterasu is the direct lineal ancestor of the current Emperor of Japan. Naturally that god would have to exist, or the current emperor would never have been born.

[Big Grin]

See? Evidence of the divine. (don't give me any of that silliness about the possibility tha tthey made it up for political reasons, were wrong, or anything like that. The Shinto religion and the emperor say it, that settles it, I believe it.)
 
Posted by Tresopax (Member # 1063) on :
 
quote:
And any good science teacher, or at least the text book, should explain that what is taught in science classes are the best theories we have given the evidence, not facts that are absolutely true and can never be changed.
That wasn't true either though - it wasn't even the best theory science had at the time. In fact, it was completely disproven, at the time they taught it to us. They already knew that electrons were not solid spheres that traveled in defined circular paths.

The reason they taught it to us was because the science teachers wisely realized that 12-year-olds would not understand the concept of electrons if they tried to explain actual quantum mechanics in middle school. We needed to be able to think of electrons in a more concrete way, even though electrons weren't really the way we were taught to think of them.

My point here is that science class is not sacred. There is no rule that we must strictly limit what is taught in a science classroom in any way. What really matters is that the students end up understanding what they need to.

Now.... whether Intelligent Design is something students need to understand is debateable. But, if your argument is that it shouldn't be in classrooms, one should not assert the reason is because "only correct science belongs in science class". That premise just isn't true. At least some nonscience belongs in science class - and possibly even some false science too.

quote:
You went too far with this example. By many definitions of "perfectly good" and "only do good things", the two are the same. I mean they DO mean virtually the same thing. So you're saying "IF a THEN a", which is a tautology.
I don't agree that "perfectly good" = "only doing good things". For instance, it is possible to be imperfect (or even evil) but somehow still end up only doing good things, by accident.
 
Posted by suminonA (Member # 8757) on :
 
quote:
Originally posted by Tresopax:
I don't agree that "perfectly good" = "only doing good things". For instance, it is possible to be imperfect (or even evil) but somehow still end up only doing good things, by accident.

You can always twist definitions like that. I did say that they were virtually the same.
Choose another example, less ambiguous. If you please.

A.
 
Posted by Tresopax (Member # 1063) on :
 
Okay, you could say "IF squares are four-sided closed shapes THEN squares have four corners" is self-evident. But it is not a tautology.
 
Posted by Paul Goldner (Member # 1910) on :
 
"This isn't true. For instance, I was taught in middle school science class that electrons were little balls of mass that traveled in defined circular paths around the nucleus of an atom. This has long been contradicted by the scientific method, yet it was nevertheless taught to me as if it was scientific fact."

I would suspect that if you had a good science teacher, he said "This is enough for us to understand right now," or something along those lines. Whether or not you remember the teacher saying something like, or whether or not the teacher was a good teacher, I don't know.
 
Posted by Enigmatic (Member # 7785) on :
 
quote:
You went too far with this example. By many definitions of "perfectly good" and "only do good things", the two are the same. I mean they DO mean virtually the same thing. So you're saying "IF a THEN a", which is a tautology.

I agree with Tresopax on this example. You say that his two statements mean "virtually the same thing" but even if we grant that they do then it is still not a tautology. "IF virtually a THEN a" is NOT a tautology, "meaning virtually the same thing" is different from being the same thing for logical construction purposes.

And now a totally off-topic question: Hey Reshpeckobiggle, does your screen name mean something/have significance/come from somewhere in particular? I've just been curious about that in most of these threads. [Smile]

--Enigmatic
 
Posted by suminonA (Member # 8757) on :
 
quote:
Originally posted by Enigmatic:
You say that his two statements mean "virtually the same thing" but even if we grant that they do then it is still not a tautology. "IF virtually a THEN a" is NOT a tautology, "meaning virtually the same thing" is different from being the same thing for logical construction purposes.

Fair enough. It is not a tautology. My point was closer to: this is virtually a tautology. Tresopax gave a nice Logical explanation, but then “ruined” it with an ambiguous example. IMO.

A.
 
Posted by Samprimary (Member # 8561) on :
 
quote:
The reason they taught it to us was because the science teachers wisely realized that 12-year-olds would not understand the concept of electrons if they tried to explain actual quantum mechanics in middle school. We needed to be able to think of electrons in a more concrete way, even though electrons weren't really the way we were taught to think of them.

My point here is that science class is not sacred. There is no rule that we must strictly limit what is taught in a science classroom in any way. What really matters is that the students end up understanding what they need to.

Now.... whether Intelligent Design is something students need to understand is debateable. But, if your argument is that it shouldn't be in classrooms, one should not assert the reason is because "only correct science belongs in science class". That premise just isn't true. At least some nonscience belongs in science class - and possibly even some false science too.

I'm really not at all okay with this notion. Science should be taught incorrectly because some people assume that it's the only way to make it understood to some audiences?

No. Absolutely not.

That's not a wise decision. It's a terrible decision.
 
Posted by suminonA (Member # 8757) on :
 
Wait, why do we have to go to the extremes ? “Simplifying” is not equivalent with “incorrect”.

I mean, is Newton’s Mechanics INCORRECT? We know Einstein got it better, but the “basic” form (or rather the “particular case”) is not to be thrown out (from the class room).

The same with the “planetary system” model of the atom. It is a model. It is a simplified model. Why would presenting it as such be wrong?

A.
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by suminonA:
Wait, why do we have to go to the extremes ? “Simplifying” is not equivalent with “incorrect”.

I mean, is Newton’s Mechanics INCORRECT? We know Einstein got it better, but the “basic” form (or rather the “particular case”) is not to be thrown out (from the class room).

The same with the “planetary system” model of the atom. It is a model. It is a simplified model. Why would presenting it as such be wrong?

A.

This is an important distinction. Newtonian physics may be "wrong," insofar as we have since figured out that reality is more complex than his three laws, and that at certain scales those laws no longer provide sufficient accuracy. However, Newtonian physics as a model (i.e. as a theory) is still commonly used for everyday applications like architecture and industrial design, because the theory sufficiently approximates reality at that level.

I agree with Samprimary that Tresopax's example is actually a case of science taught badly, rather than "teachers wisely realiz[ing] that 12-year-olds would not understand the concept of electrons if they tried to explain actual quantum mechanics in middle school." Unlike Newtonian physics, the electrons-as-orbiting-particles model is just plain wrong, period. It has been falsified completely, and again unlike Newtonian physics, cannot even be used in lieu of the more complex orbital model in "simpler" applications. In suminonA's words, this isn't a simplification- it's incorrect.

As someone who was also taught that model in elementary school, I actually found it incredibly frustrating in high school and college having to unlearn the incorrect things I'd been taught, upon my introduction to orbital theory. I would rather have been taught about orbitals to begin with, even if the details might have gone over my 10 year old head.

Teaching creationism is, if anything, worse than teaching the orbiting electron model. At least the latter was actually scientific, and was duly disproven and therefore shelved as a theory based on the data. Creationism (or "intelligent design") is not scientific in the slightest, as it makes no predictions and cannot be falsified. This, by definition, should disqualify it from inclusion in science classes. Evolution, on the other hand, has 150 years worth of solid evidence backing it up- if you think about it, that's more than the theory of relativity.
 
Posted by The Rabbit (Member # 671) on :
 
quote:
Unlike Newtonian physics, the electrons-as-orbiting-particles model is just plain wrong, period. It has been falsified completely, and again unlike Newtonian physics, cannot even be used in lieu of the more complex orbital model in "simpler" applications. In suminonA's words, this isn't a simplification- it's incorrect.
I beg to disagree. The Bohr model of the atom (planetary model), although much simpler than the full quantum mechanics model, is neither falsified nor wrong. It is generally considered obsolete but it is worth mentioning that this simplified model is still used in X-ray and Auger spectroscopy because it is accurate enough for most applications.
 
Posted by MightyCow (Member # 9253) on :
 
Resh: I'm guessing that you haven't read "The Blind Watchmaker" by Dawkins, as it directly addresses many of the points you've made in recent discussions.

I would recommend it to you, not because I think it will change your mind - I'm sure that if you choose to ignore the basic premises the rest of the book won't convince you - but it is fascinating and quite well written. Even if you don't believe a bit of it, I personally found quite interesting all the various discussions we've had here recently, laid out in greater detail by an expert. Quite enlightening, to my mind.
 
Posted by Samprimary (Member # 8561) on :
 
quote:
I agree with Samprimary that Tresopax's example is actually a case of science taught badly, rather than "teachers wisely realiz[ing] that 12-year-olds would not understand the concept of electrons if they tried to explain actual quantum mechanics in middle school." Unlike Newtonian physics, the electrons-as-orbiting-particles model is just plain wrong, period. It has been falsified completely, and again unlike Newtonian physics, cannot even be used in lieu of the more complex orbital model in "simpler" applications. In suminonA's words, this isn't a simplification- it's incorrect.
Yes. Thank you. Thank you for adding to this. You use the Bohr model as a simplified model for things like, say, demonstrating chemical relationships in a visual format. It does not come accompanied inherently with misinformation, nor should it. You can demonstrate a valence shell with a line without teaching anyone that it's like a 'planetary orbit' of an electron 'planet' or anything like that.
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by The Rabbit:
quote:
Unlike Newtonian physics, the electrons-as-orbiting-particles model is just plain wrong, period. It has been falsified completely, and again unlike Newtonian physics, cannot even be used in lieu of the more complex orbital model in "simpler" applications. In suminonA's words, this isn't a simplification- it's incorrect.
I beg to disagree. The Bohr model of the atom (planetary model), although much simpler than the full quantum mechanics model, is neither falsified nor wrong. It is generally considered obsolete but it is worth mentioning that this simplified model is still used in X-ray and Auger spectroscopy because it is accurate enough for most applications.
My bad. It's been a long while since I took basic chemistry, and I know next to nothing about physics. Still, it should be pointed out that this only further supports the idea that even obsolete scientific theories have more predictive value than non-scientific pseudotheories like intelligent design.

So let me amend my comments above: the Bohr model may not describe reality as accurately as orbital theory, but like Newtonian physics (as well as Darwin's original, pre-genetics conception of evolutionary theory), it was arrived at using scientific principles. Therefore, it is not surprising that, within certain constraints, it can still be useful so long as its limitations based on modern data are kept in mind.

And Samp, no need for the passive aggression, eh? I can admit my errors. Unless that was all meant seriously. It's kind of hard to tell with you, sometimes.
 
Posted by Samprimary (Member # 8561) on :
 
Since I am openly and clearly stating my disagreement with an idea I have no idea how that became 'passive aggression?'
 
Posted by Tarrsk (Member # 332) on :
 
I was referring to this part of your statement:

quote:
Yes. Thank you. Thank you for adding to this.
*shrug* It was unnecessary, if you ask me, but whatever. I have no desire to turn Junior Mod like Resh, so let me restate my apologies for my factual error. Shall we move on with our lives?
 
Posted by Samprimary (Member # 8561) on :
 
I try to thank people when they state portions of things I would like to have stated but didn't or couldn't as well and it's all serious and a 100% offhand 'thanks' -- I'm really actually seriously thanking you and continuing on your point!
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
Hi, everybody. I'm completely backed up with everything right now, and I have a vacation planned leter this week, so I might not get any time to post. Interesting (albeit off-topic) discussions. Tresopax, you know what you're talking about, but I think you are misunderstanding me. Try to look at what I'm saying from a different angle.

Mike, here's a hint: "Reshpeckobiggle," said Puddleglum.
"Oh! screamed the Queen, gathering her skirts close about her ankles. "The horrid thing! It's alive."
"He's quite all right, your Majesty, really, he is,"
said Scrubb hastily. "You'll like him much better when
you get to know him. I'm sure you will."
 
Posted by Tarrsk (Member # 332) on :
 
quote:
Originally posted by Samprimary:
I try to thank people when they state portions of things I would like to have stated but didn't or couldn't as well and it's all serious and a 100% offhand 'thanks' -- I'm really actually seriously thanking you and continuing on your point!

Oh, damn. In that case, egg on my face and foot crammed solidly in my mouth. Sorry, Samp.
 
Posted by Kwea (Member # 2199) on :
 
The Silver Chair.
 
Posted by scholar (Member # 9232) on :
 
http://www.cnn.com/2007/TECH/science/12/13/evolution.speedup/index.html

The title of this article annoys me. Is Human Evolution Accelerating? I understand the argument but the headline upsets me- like its oversimplified.
 
Posted by Shigosei (Member # 3831) on :
 
Now that I'm a bit less busy, I thought I'd talk about about some basic concepts like I said I would. I'm assuming that everyone knows certain things like DNA --> RNA --> protein, what nucleotides are, and the basics of how DNA replication works. If you don't know, that's fine -- you can either look things up or you can ask me questions if you don't know what a word means or you're confused about something.

Without further ado, I present Basic Molecular Biology Part I: PCR Primer*

The first thing you should know about is a technique called polymerase chain reaction (PCR). It's similar to the way your cells copy DNA, except it happens in a test tube. When your cells do it, there are a bunch of enzymes that do things. First, the two strands of DNA are separated, and then some short, complementary starter sequences called "primers" are added to the DNA. It would be something like this:
code:
Double stranded DNA:

AGGCCGTTGAGAGTAGCATCTCCTC
TCCGGCAACTCTCATCGTAGAGGAG

Separated:

AGGCCGTTGAGAGTAGCATCTCCTC


TCCGGCAACTCTCATCGTAGAGGAG

With primers added:


AGGCCGTTGAGAGTAGCATCTCCTC
TCCGGCAA


TCTCCTC
TCCGGCAACTCTCATCGTAGAGGAG

Once the primers are on, an enzyme called polymerase moves along each single strand, adding the proper complementary nucleotides to the end of the growing strand as it moves. Polymerase needs the primer to get started.

PCR is a similar process. Let's say I have a bunch of DNA from E. coli and I want to make copies of it. I take E. coli DNA and mix it with some polymerase, some primers, and some single nucleotides. Instead of using enzymes to separate the DNA, I use a cycle of heating and cooling. First, I heat the DNA up. That "melts" everything so there are just single strands floating around. Then I cool it down so that the primers can bind to the DNA. Then I warm it up a bit to the temperature that the polymerase works best at, and the polymerase latches on to the primers and adds nucleotides to the ends of them, thus making complementary strands to the original DNA. This happens several times, and in the end, you have a bunch of copies of the DNA that you put in.

Wikipedia has a helpful graphical representation.


*Pun intended.
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
You already lost me.
 
Posted by Shigosei (Member # 3831) on :
 
There's a way of copying DNA in a test tube. You start at a particular point, and make the copy longer, one nucleotide at a time. Do you know what I mean when I say that the strands are complementary?
 
Posted by Kwea (Member # 2199) on :
 
They talk?
.
.
.
.
.
.
That's amazing!

[Evil]
 
Posted by Shigosei (Member # 3831) on :
 
They are *not* complimentary [Wink]
 
Posted by Kwea (Member # 2199) on :
 
Those potty-mouths!
 
Posted by Shigosei (Member # 3831) on :
 
Huh. I guess I killed the thread. <really obscure molecular biology joke> Maybe there was a ddNTP in that post? </joke>
 
Posted by Tarrsk (Member # 332) on :
 
[ROFL]
 
Posted by Shigosei (Member # 3831) on :
 
I figured you'd get it. And I bet almost no one else will.
 
Posted by scholar (Member # 9232) on :
 
I got it!
 
Posted by MattP (Member # 10495) on :
 
I understood it (not the joke, the previous post) and I have zero education in molecular biology beyond whatever was touched on in high school biology class, FWIW. Thanks for sharing.
 
Posted by scholar (Member # 9232) on :
 
MattP- just out of curiosity, how long ago was high school bio for you? I have noticed just over the past 6 years a difference in what is taught in the high schools. I am also told that CSI once did a very nice description of PCR. The PCR took all of 3 minutes, but the explanation of the process was supposedly good (I don't watch CSI, so this isn't first hand knowledge).
 
Posted by MattP (Member # 10495) on :
 
A very long time ago. Class of '91.
 
Posted by Mike (Member # 55) on :
 
quote:
Originally posted by Reshpeckobiggle:
You already lost me.

I didn't respond to this when it was posted because I thought the thread would progress faster than it has. But since things are pretty quiet...

Honestly I'm a little surprised, though maybe I shouldn't be. I'm with MattP: I know little more about biology than what I learned in my high school class over a decade ago, but Shigosei's explanation was easy to follow.

Resh, perhaps it would be a good idea to learn a little bit about the basics of molecular biology. We can help you. [Smile] Don't worry, a little knowledge and understanding will not suddenly turn you into an atheist.
 
Posted by Bokonon (Member # 480) on :
 
Resh, where is your point of confusion?

1) The structure of DNA?
2) The components that make up DNA?
3) The difference between DNA/RNA/amino acids?
4) Something else?

And do you really care to understand these intricacies? That'll go a long way towards helping others decide how much effort to put into responses.

-Bok
 
Posted by Reshpeckobiggle (Member # 8947) on :
 
4) Something else. I think it probabl lies in the "basics od DNA...what nucleotides are" that Shigosei was assuming I already understand. He said I can just look this stuff up, but it already appears to me that I'm going to be expected to learn some serious biochemical theory here, and I'm really not prepared to do that.

If no one cares to put much effort into their responses because they do not wish to argue with a layman, then they can go on talking each other with the knowledge that only they can understand each other and everyone else will just go about their lives with the belief that one can learn truth without having a degree in biology (and without relinquishing their ability to make decisions for themselves.)
 
Posted by scholar (Member # 9232) on :
 
Resh, I am not saying this to be insulting but I have not had to teach PCR to my new undergrads for several years. They have all done PCR experiments in high school biology (my latest two have actually successfully cloned genes in high school-one is business and the other undecided). When you say a degree in biology, this is not the expectation. The expectation is a high school degree. I know that the weakness in your education may not be your fault, but it is now up to you to remedy this. I know people on this board would be more than willing to answer questions for you and there are a lot of resources out there. But I do not think it is unreasonable to assume a high school level understanding of a concept in a debate.
 
Posted by Bokonon (Member # 480) on :
 
Resh, the amount of biochem you need to know is that taught in high school biology (at least it was back in 91, when I took bio). It isn't that complex.

What do you actually know about DNA and cell division and replication?

-Bok
 
Posted by fugu13 (Member # 2859) on :
 
This isn't anything complex, this is a few weeks worth of high school biology (at the high school pace), and not even the fiddly memorization stuff, just the big picture stuff.

Most of us are laymen. Most of us are just recalling the biology we learned in high school and possibly college, and what we've picked up based on reading. I have taken no science classes since high school (granted I did take AP science classes in high school, and I do a fair bit of independent reading).

We are not unwilling to argue with a layman. We are unwilling to argue over slightly beyond the basics matters of biology with someone who doesn't even know the absolute basics of high school biology that are taught in almost every high school in America, and have been for at least a decade or two. This is like trying to show someone who hasn't bothered to learn simple algebra a basic gloss of how Calculus works.

One thing that I should hope is becoming clear to you is that you don't have anywhere near the background to even begin to evaluate the arguments of anyone you have held up as a genius who opposes evolution.

[ December 23, 2007, 12:40 AM: Message edited by: fugu13 ]
 
Posted by swbarnes2 (Member # 10225) on :
 
Resh, this conversation has gone on way, way too long without establishing a few basic things.

I think that both you and the other people on this board need to make a few things clear:

1) Do you believe that in order to argue intelligently against a particular theory, that one has to actually understand the theory? (At at least a high school level)

2) Do you believe that you have at least a high school level understanding ov evolution?

3) Do you believe that you have demonstrated at least a high schooler's level of understanding of evolution?

I bet that for most of the people arguing against you, the answers are 'Yes", "No", and "No". I also bet that your answer differs in at least one of these questions.

I think we all have to be on the same page with regard to thses points, or at least know explicitely where everyone stands here, before any further informative discussion can happen between you and other people on the board.
 
Posted by rivka (Member # 4859) on :
 
quote:
Originally posted by MattP:
A very long time ago. Class of '91.

*high-fives*
 
Posted by 0Megabyte (Member # 8624) on :
 
Darned old people. Class of 91, for goodness' sake...
 
Posted by TomDavidson (Member # 124) on :
 
I was class of '91, myself. Damn fine year.
 
Posted by Samprimary (Member # 8561) on :
 
quote:
RESH: I'm going to be expected to learn some serious biochemical theory here,
quote:
I know little more about biology than what I learned in my high school class over a decade ago, but Shigosei's explanation was easy to follow.
quote:
Resh, perhaps it would be a good idea to learn a little bit about the basics of molecular biology. We can help you.
quote:
do you really care to understand these intricacies?
quote:
I am not saying this to be insulting but I have not had to teach PCR to my new undergrads for several years. They have all done PCR experiments in high school biology (my latest two have actually successfully cloned genes in high school-one is business and the other undecided). When you say a degree in biology, this is not the expectation. The expectation is a high school degree. I know that the weakness in your education may not be your fault, but it is now up to you to remedy this.
quote:
I do not think it is unreasonable to assume a high school level understanding of a concept in a debate.
quote:
This isn't anything complex, this is a few weeks worth of high school biology
quote:
. Most of us are just recalling the biology we learned in high school and possibly college, and what we've picked up based on reading.
quote:
It isn't that complex.
.
.
.
.

quote:
RESH: If no one cares to put much effort into their responses because they do not wish to argue with a layman, then they can go on talking each other with the knowledge that only they can understand
quote:
I know that the weakness in your education may not be your fault, but it is now up to you to remedy this.
quote:
I know people on this board would be more than willing to answer questions for you and there are a lot of resources out there.
quote:
Most of us are laymen.
quote:
We are not unwilling to argue with a layman.
quote:
We can help you.
quote:
If you don't know, that's fine -- you can either look things up or you can ask me questions if you don't know what a word means or you're confused about something.
quote:
We can help you.
quote:
We can help you.
quote:
We can help you.
.
.
.
.


CONCLUSION

quote:
RESH: I'm really not prepared

 
Posted by Noemon (Member # 1115) on :
 
quote:
Originally posted by 0Megabyte:
Darned old people. Class of 91, for goodness' sake...

Eh, they're the children of a later, decadent age. The class of '90 represents the apex of civilization.
 
Posted by rivka (Member # 4859) on :
 
Ice age relic. [Razz]
 
Posted by 0Megabyte (Member # 8624) on :
 
Noemon: Eh? Class of 90 the apex of civilization?

Ha! Tell that to my class of '06 once we've brought the world to revolution!
 
Posted by steven (Member # 8099) on :
 
Once the boomers die, my generation will rule the world. Forever. It's scary.
 


Copyright © 2008 Hatrack River Enterprises Inc. All rights reserved.
Reproduction in whole or in part without permission is prohibited.


Powered by Infopop Corporation
UBB.classic™ 6.7.2