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Wholly Natrualistic Alternative To Neo-Darwinism?

Once again, these are the important components of the mechanism of Evolution:

  • Genetic changes occur through random/chance mutation, crossing over, reshuffling of chromosomes during meiosis, new diploid combinations from haploid pairs, chromosomal material loss/duplication/transposition, etc; A variety of said genetic changes exists in the "gene pool".
  • Some of these changes open up new opportunities to fill new niches, and/or improve their existing specializations along the way. Niche options come in many forms, and a single entity could shift between them over time: predator or prey, parasite or mutually beneficial symbiant, etc.
  • Selection of which changes go to the next round is set against a fitness landscape, which includes competition from other species, members of their own species (mating, food, etc.), avoidance of predators, and changing environmental conditions, etc.
  • This is iterated millions of times, over millions of years.

What is it about this mechanism that makes it impossible for a reptilian common ancestor to become both a bird in one lineage and a human in another?!

The evidence Dinwar and others are presenting is evidence that follows THIS mechanism I have outlined.

If you think this outline is still missing something, please tell us what it is.

If you think the outline is adequate, but that the evidence does not support it, describe which parts of the outline are not being reflected in the evidence.
 
It's not impossible Wosbagger.....

Once again, these are the important components of the mechanism of Evolution:

  • Genetic changes occur through random/chance mutation, crossing over, reshuffling of chromosomes during meiosis, new diploid combinations from haploid pairs, chromosomal material loss/duplication/transposition, etc; A variety of said genetic changes exists in the "gene pool".
  • Some of these changes open up new opportunities to fill new niches, and/or improve their existing specializations along the way. Niche options come in many forms, and a single entity could shift between them over time: predator or prey, parasite or mutually beneficial symbiant, etc.
  • Selection of which changes go to the next round is set against a fitness landscape, which includes competition from other species, members of their own species (mating, food, etc.), avoidance of predators, and changing environmental conditions, etc.
  • This is iterated millions of times, over millions of years.

What is it about this mechanism that makes it impossible for a reptilian common ancestor to become both a bird in one lineage and a human in another?!

The evidence Dinwar and others are presenting is evidence that follows THIS mechanism I have outlined.

If you think this outline is still missing something, please tell us what it is.

If you think the outline is adequate, but that the evidence does not support it, describe which parts of the outline are not being reflected in the evidence.

It's not impossible Wosbagger....., it simply seems very very unlikely.

What would make it likely?

Say both the fossil species and living species transitional from records were not so incomplete. Say for example we had very good fossils for things like reptile/birds, and these fossils showed a clear progression of being less and less reptile like and more and more bird like over time. We have some stuff like this, but not much, very very little.

And say with regard to living things, there were transitional forms, things alive that were between reptiles and birds. Say a reptile that had unidirectional air flow through her lungs, or a clear cut well formed 4 chamber heart, or was partially warm blooded and another even more warm blooded and one more warm blooded still.

We have nothing like this. What we do have, more or less, living example wise, are definite reptiles and definite birds, nothing like these transitional forms I would hope for.

Say though we were to have these things, these living transitional forms, and then we went on to sequence their genomes. We then might find in the transitional form gene sequence features indicating plausible "movement", DNA change wise, by way of the previously discussed mechanisms, from reptilian 3 chambered heart to 4 chambers, from cold bloodedness to progressively more and more warm bloodedness, from reptile lung to unidirectional airflow/avian type lung. We then would be able to make a strong claim that what we were seeing were the transitional phenotype changes reflected in the transitional genotypes, and we could say, "yes, there's where the sequence changed, and it seems reasonable this could have happened by way of the mechanisms we have discussed".

We don't have anything like this.
 
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And say with regard to living things, there were transitional forms, things alive that were between reptiles and birds. Say a reptile that had unidirectional air flow through her lungs, or a clear cut well formed 4 chamber heart, or was partially warm blooded and another even more warm blooded and one more warm blooded still.

We have nothing like this. What we do have, more or less, living example wise, are definite reptiles and definite birds, nothing like these transitional forms I would hope for.

You seem to be unaware of the existence of crocodilians, archosaurs which are the closest living relatives of the birds and possess a four-chambered heart resembling but not identical to that of birds.

http://library.thinkquest.org/C003758/Development/reptile.htm
 
Patrick1000 said:
We have some stuff like this, but not much, very very little.
This is completely wrong. We actually have a very good record of transitional forms from dinosaurs to birsd (The Dinosauria).

And say with regard to living things, there were transitional forms, things alive that were between reptiles and birds. Say a reptile that had unidirectional air flow through her lungs, or a clear cut well formed 4 chamber heart, or was partially warm blooded and another even more warm blooded and one more warm blooded still.

We have nothing like this.
Not for the transition between birds and reptiles--they all went extinct. But we DO have transitional forms today--ring species, for example.

What we do have, more or less, living example wise, are definite reptiles and definite birds, nothing like these transitional forms I would hope for.
Right--because those transitional forms died out and are present only in the fossil record. We've been through that before.

We then would be able to make a strong claim that what we were seeing were the transitional phenotype changes reflected in the transitional genotypes, and we could say, "yes, there's where the sequence changed, and it seems reasonable this could have happened by way of the mechanisms we have discussed".

We don't have anything like this.
No. But what we DO have is direct genetic evidence of what genes changed in what ways, which I've referenced to so many times (including one talk and one book on the subject) that your denial of the evidence is truly on the level of Hovand, Ham, and the other Creationists. You have decided that only one specific type of evidence, which you conveniently pick to be completely unobtainable (both in terms of the nature of the evidence and the lineage you picked), and nothing else will possibly convince you--not even a slightly different version of the same genetic evidence you demand!

Why are you deliberately ignoring data, Patrick1000? Could it be that you're not being honest about your intentions?

And besides, you've yet to demonstrate that there is ANYTHING preventing small-scale accumulations of changes, itteratively and over millions of years, from adding up to what we see now. Not a single shred of evidence beyond "I don't get it". When there's one theory that's so well-supported it's actually comical on one side (scientists do make jokes about it), and literally nothing but one person's incredulity on the other side, it's pure irrationality to discard the well-supported theory in favor of one person's incredulity, and that's not even taking into account your complete lack of credibility.
 
It's not impossible Wosbagger....., it simply seems very very unlikely.

What you mean by "unlikely"?

Natural Selection takes the form of accumulated probability. Once a species is nudged into a new niche, the chances that new adaptations will come about, to fill that niche better, actually improve, over time!

This is demonstrated in Dawkins' "Weasel Program":
http://en.wikipedia.org/wiki/Weasel_program

The chances that a random string of variables could transform into the words "METHINKS IT IS LIKE A WEASEL" are actually VERY LIKELY, as long as favored changes are preserved. This is a simplified view of what happens in biology.

Say both the fossil species and living species transitional from records were not so incomplete. Say for example we had very good fossils for things like reptile/birds, and these fossils showed a clear progression of being less and less reptile like and more and more bird like over time. We have some stuff like this, but not much, very very little.

Perfect evidence would always be nice. But, we got to make do with what we have.

In the above statements, you pretty much already conceded that the mechanism could work. You just do not think it is likely to work. Hopefully the Weasel program, and the like, would be sufficient evidence regarding the probability for you.

But, WE are going to need stronger evidence than "your fossil record is incomplete!", before we will recognize that a new mechanism is necessary. We seem to have all the math and the computer sims. to demonstrate that the currently accepted mechanism is sufficient.

What mechanism would you propose that would make the evolutionary changes more likely to happen?!


And say with regard to living things, there were transitional forms, things alive that were between reptiles and birds. Say a reptile that had unidirectional air flow through her lungs, or a clear cut well formed 4 chamber heart, or was partially warm blooded and another even more warm blooded and one more warm blooded still.

I will have to look up the reference, but I believe the evolution of the chambers of the heart was already worked out. The genes for it originally functioned as filter feeders, or something. If anyone has a good link to this, before I can find mine, you can contribute it.

We don't have anything like this.
We are gaining more and more stuff like that, every day! In fact, that is what biologists do best!

ETA: And Dinwar, as usual, is full of examples of things you don't think we have anything like!
 
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He may impress a high school biology teacher but any English teacher would be very disappointed with sentences like this:



:eek:

Actually, I am an English teacher, but I found the quoted passage (It's actually not a sentence at all--just a string of gerund phrases with no predicate) more humorous than disappointing. ;)

Anyway, kudos to everyone taking the time to respond seriously here; I'm learning a lot in this thread. :)
 
If there is one sentence in this whole mess that sums up this thread....

Why are you deliberately ignoring data, Patrick1000? Could it be that you're not being honest about your intentions?


..... there it is.

Well that and the "don't feed the trolls" comment a few pages back.

Patrick, I have a different question for you. You might be able to dig up a few "scientists" living under a rock some place that agree with you on this. But the OVERWHELMING majority of scientists from many different (but related) disciplines over the course of a century plus completely agree with the TOE based on the evidence.

I assume you are an intelligent individual but how is it that YOU know more than of all of these thousands and thousands of other intelligent individuals working directly in their field of study? (What is your field of study again?)

Doesn't that make you question your position and perhaps lead you the conclusion that you could be missing something? I know it sure would for me.
 
If there is one sentence in this whole mess that sums up this thread....




..... there it is.

Well that and the "don't feed the trolls" comment a few pages back.

Patrick, I have a different question for you. You might be able to dig up a few "scientists" living under a rock some place that agree with you on this. But the OVERWHELMING majority of scientists from many different (but related) disciplines over the course of a century plus completely agree with the TOE based on the evidence.

I assume you are an intelligent individual but how is it that YOU know more than of all of these thousands and thousands of other intelligent individuals working directly in their field of study? (What is your field of study again?)

Doesn't that make you question your position and perhaps lead you the conclusion that you could be missing something? I know it sure would for me.

Think ego-testicle. Then you will have the answer to your question.
 
I remember going to a zoo as a kid. The directions told us to turn left. It was down a one-way street, four lanes, all going to the right. About 100 cars were coming at us. My father, a man who has gotten into fist fights with the whole police force back in my home town and won (he was right) and who makes his living by knowing more than anyone around him about pretty much anything (civil engineer) said "Honey, even *I* can't say that many people are wrong."

Patrick1000 makes my father look humble. There's not a lot of people on this planet or in orbit around it that can do that.
 
Well, evolution is not exactly an intuitive thing. It is easier for a typical person to "not quite get it" than to understand it perfectly, without learning something about nearly every aspect of it.

Five years ago, or so, I was making some bad assumptions about evolution, myself.
 
So, just because, I think that it might not be a bad thing to review Patrick1000's arguments in this thread and deal with them in simplified format. If anyone would like to add to any of these, please, feel free. I'm going to try to deal only with the relatively major ones, though, myself. Or just ones that really stand out. Also, please correct me if I make mistakes, not that I likely needed to say that.

I cut off at about page 15, either way.

Argument 1: The mechanism for evolution, as he understands it, seems implausible.

Responses: 1. Given the presentation, it's been an argument from incredulity, and therefore, is not a credible argument. One can believe anything, but that says nothing about the veracity of the belief, without being able to back up the position.

2. The mechanism for evolution, as is it stands currently, has been demonstrated to work as described in numerous ways. Computer simulations, for example, are a fine way to test the process, theoretically. Paleontology and fossils do a fine job of dealing with history. DNA evidence matches expectations. The list goes on.

Given all this, it is up to the groups claiming the problems to, at the least, demonstrate what they are.


Argument 2: "Just because one can soar quite high in a hot air balloon, that does not mean one can climb on and ride the balloon to the moon" as applied to evolution.

Response: Bad analogy. While the statement is true, the comparison to evolution is not, without demonstrating some evidenced insurmountable barrier that cannot already be easily explained in terms of evolutionary theory. Until said barrier is elaborated upon, the point fails, regardless.

Argument 3: "Present your molecular evidence for birds from dinosaurs. Show us the EVIDENCE that a dinosaur became a bird over time by way of a series of random, undirected, unrelated mutations."

Response: 1. Dinwar's repeatedly pointed out Jack Horner's research and addressed this.

2. This request is disingenuous in the first place. "Show me that my straw man representation of evolution is actually the case." would be a better way to sum up this, in addition to asking for what is an impossible standard of proof. Namely, "show me that this DID happen, because showing me that it is completely logical and reasonable to assume that it happened how the experts say, for the reasons that they say it did, is not enough."

3. Random, undirected, unrelated, etc will be dealt with later.

Argument 3: Concedes that common ancestry is, by far, the more likely option, but keeps coincidence on the table as a possibility for another option.

Goes on to say that just because common ancestry is probably the case, that doesn't automatically mean that we understand how things happened.

Response: 1: Entirely correct, at the level of "possible." At the level of "probable," this is nonsense.

2. This screams "Creationist" argument from start to end.

3. The mechanism for evolution, as is it stands currently, has been demonstrated to work as described in numerous ways. Computer simulations, for example, are a fine way to test the process, theoretically. Paleontology and fossils do a fine job of dealing with history. DNA evidence matches expectations. The list goes on.

Given all this, it is neither logical nor reasonable to withhold support from modern evolutionary theory. Certainly, there is more that can be and will be learned, at this rate, and it is unlikely that evolutionary theory is complete, but the issues with it, given current evidence, are far, far smaller than would warrant accepting this as a valid argument against modern evolutionary theory.

Argument 4: Just because we don't have another naturalistic mechanism, it doesn't mean that evolution is a good mechanism and should be believed.

Response: 1. True, taken at face value. The moment, however, that you understand that it is currently the only viable theory BECAUSE of the evidence, out of many others, this breaks down, quickly.

2. A good mechanism explains the evidence. Evolution explains the evidence. Therefore, Patrick1000's premise is simply false. It's possible that there's better, but provisional acceptance should not be withheld for "maybes."

Argument 5: Cytochrome C challenged evolutionary theory. Evolutionary theory should not have been allowed to change and adapt to instances like that.

Response: It doesn't challenge modern evolutionary theory, which is what's actually in question. Neutral mutations are accounted for in modern evolutionary theory and the function that Cytochrome C performs is essential enough to the viability of an organism that changes to the functional portions of it will almost certainly have extreme negative effects on the viability of the living thing in question. That said, there was absolutely nothing about the case of Cytochrome C that actually contradicted evolutionary theory's mechanism, therefore, there was and is no reason to say that the theory could not accept novel applications of its mechanism.

Argument 6: "How can you be so confident that the evolutionary mechanism presented to you is TRUE, if you do not have the slightest idea what the mechanism is purported to create in the first place?"

Response: Non sequitur. These two things are not related in such a way as to make this a valid argument.

Argument 7:
Finally, God would be dead once and for all......

Just in case you didn't notice Dinwar, were the fossil record to actually provide solid proof that the conventional(UNDIRECTED, UNINTENTIONAL) biochemical mechanism of evolution was a FACT, God would POOF!, no longer be a possibility, let alone a fact, proven out of existence she would finally be, once and for all. The fossils, "proving" the molecular mechanism, would prove that God never was, as there never was INTENTION.

Response: 1. Irrelevant. Implications about whether God exists have nothing to do with whether evolution theory is correct.

2. Dramatically and incorrectly characterizing issues makes for blatantly bad arguments. God could not "POOF" if it never existed. God could not be a fact, if it never existed.

3. "Solid proof" strongly suggests basic misunderstandings of science, in general. Science disproves. Science does not prove.

4. Only a very limited subsection of versions of deities are directly contradicted by evolutionary theory. The versions of the Christian God upheld by most Christians are not contradicted, contrary to Patrick1000's and a number of Creationist's claims.

5. Undirected and unintentional are dealt with later, given how common the claims are.


Argument 8:
There may be some wholly natural, heretofore unrecognized "biologic variable"(not related to God in any sense) generating, being responsible for, the dynamic of intention/direction/purpose in the development/evolution of living systems.

Could we have "non random mutations" without a God, without an external director?

Response: 1. Without either evidence for this, nor a demonstrated issue without this, there is no reason to accept this to be the case.

2. Proposing "psychic DNA" as Dinwar put it, rests on a number of unscientific and potentially untestable assumptions.



Litany of claims, which I left out numerous arguments that deal with them. "Evolution is...

"Random mutations" - No. Mutations can be considered to be random, but that's just one of a number of mechanisms that form evolutionary theory. Natural selection, which is another extremely important mechanism in evolutionary theory, is not random.

"Unrelated mutations" - Yes. That said, each of Patrick1000's usages were part of an argument from incredulity.

"Purposeless" - Depends on the form of purpose. The purpose of evolutionary theory is to explain the evidence gathered, form conclusions based on that, and make predictions, based on those conclusions. So far, those conclusions have been upheld.

Asking what the purpose of evolution is, is similar to asking what the purpose of gravity is. Blind speculation in an attempt to answer what may very well be an irrelevant question.

In the sense it's being used? Creationist nonsense. "What's the purpose of life?" Neither evolutionary theory nor science in general ever claimed to answer that question, beyond a mechanistic level.

"Undirected" - No. Natural selection counts just fine for direction.

In the sense that it's being used? Either Creationist nonsense or general nonsense.

"Unintentional" - Sorta, yes for a nonstandard usage of unintentional. Specifically, intention is utterly and completely irrelevant to evolutionary theory. It says absolutely nothing for or against intentionality. Nor can it, really. It can demonstrate that specific forms that the intention might take are highly unlikely, when combined with other fields, but that's about it.

"Not testable" - Every new piece of evidence tests the theory, given science. Every. Single. One. A number of examples of ways to test and falsify evolutionary theory were given in the thread and can easily be found elsewhere. Note: Creationist claim.

"Not falsifiable" - See "Not testable."

"Not scientific" - No real evidence was given to back up this claim. See "Not testable" for summary.

"Starkly anti-theistic" - No. Evolutionary theory is atheistic, in the sense that all science is atheistic, namely, "without God or god(s)." God is not part of the equation for lots of excellent reasons. Given that God is not part of the equation, science is not and CANNOT be either theistic or anti-theistic. Any and all arguments that say otherwise are wrong, to the point that they could never be right.


As an aside, excessively frequent cases of resorting to God as somehow relevant, the prevalence of logic and claims that only really make sense to make if one's working from a Christian Creationist's worldview, Creationist tactics, even with the concessions, quotes like "the gospel of conventional neo-Darwinism," praise for ID, and so on all point very strongly to Patrick1000 being either a Creationist troll or parrot. This may not be true, granted, but is highly likely. Just in case anyone else hadn't come to that conclusion on their own.
 
So, just because, I think that it might not be a bad thing to review Patrick1000's arguments in this thread and deal with them in simplified format. If anyone would like to add to any of these, please, feel free.
I'd like to do the opposite.
Argument 1: The mechanism for evolution, as he understands it, seems implausible.
This should read.
The mechanism for evolution is deliberately misrepresented by him in order to argue that it seems implausible.
​
 
The "balloon to the moon" is a pretty bad analogy, but it reminded me of looking for a "skyhook" as the only way to get to the moon when a series of "cranes" would be the more realistic way.

I was going to credit Dawkins with the "cranes vs. skyhooks" metaphor, but it seems like Dennett came up with it first, in "Darwin's Dangerous Idea".

I found a reference to it here: http://en.wikipedia.org/wiki/Ultimate_Boeing_747_gambit

Scroll down to "Dawkin's statement".

In part: "One of the greatest challenges to the human intellect, over the centuries, has been to explain how the complex, improbable appearance of design in the universe arises.

The natural temptation is to attribute the appearance of design to actual design itself. In the case of a man-made artefact such as a watch, the designer really was an intelligent engineer. It is tempting to apply the same logic to an eye or a wing, a spider or a person.

The temptation is a false one, because the designer hypothesis immediately raises the larger problem of who designed the designer. The whole problem we started out with was the problem of explaining statistical improbability. It is obviously no solution to postulate something even more improbable. We need a "crane," not a "skyhook;" for only a crane can do the business of working up gradually and plausibly from simplicity to otherwise improbable complexity.

The most ingenious and powerful crane so far discovered is Darwinian evolution by natural selection."
 
Nice summary, Aridas.

Condensed version: Patrick has read a creationist website, removed explicit Goddidit references and regurgitated it here, thinking the God bit is the only flaw in their criticism of the ToE. As in all his threads he's just trolling for fun, but the rest of us get to learn lots of cool stuff from the posters patiently explaining why he's wrong.
 
Nice summary, Aridas.

Condensed version: Patrick has read a creationist website, removed explicit Goddidit references and regurgitated it here, thinking the God bit is the only flaw in their criticism of the ToE. As in all his threads he's just trolling for fun, but the rest of us get to learn lots of cool stuff from the posters patiently explaining why he's wrong.


Agree, agree, agree.

Thank you patient peoples. :)

And thanks for the summary Adrias.
 
And my 2 cents...

The opening post says everything:

Evolution is bunk. Prove me wrong.
 
My thanks to Aridas for the summary, which reminded me of the argument about the balloon that could not reach the Moon. I think nobody has pointed out that the difference between the balloon and evolution is that the balloon can only change quantitatively, by changing the amount or the lift of the gas, whereas evolution is able to change qualitatively, because a mutation can cause entirely new proteins with new capabilities that were not present before. So, in effect, evolution could have resulted in a rocket to reach the Moon, whereas the hot-air skipper is left behind.

But of course, the analogy fails because evolution does not have a goal like reaching the Moon.
 
A very impressive summary, Aridas! Thank you.

steenkh said:
I think nobody has pointed out that the difference between the balloon and evolution is that the balloon can only change quantitatively, by changing the amount or the lift of the gas, whereas evolution is able to change qualitatively, because a mutation can cause entirely new proteins with new capabilities that were not present before. So, in effect, evolution could have resulted in a rocket to reach the Moon, whereas the hot-air skipper is left behind.
I mentioned it before, but the bigger issue is that the comparison fails because of scale. "Evolution" is more akin to "transportation" than any individual mode of transportation (which would be akin to a clade). We DID go from walking to flying to the Moon--along with from walking to high-speed rails, to go-carts, to jousting. Going to the moon represents one history of accumulations of small changes: rocketry, and a specific type of rocketry.
 
I mentioned it before, but the bigger issue is that the comparison fails because of scale.
Hm, I think you are right. I was probably inspired by your post rather than my own brilliance! Well, for a moment I thought I had an original thought ;)
 

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