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Author Topic:   Proofs of Evolution: A Mediocre Debate (Faith, robinrohan and their invitees)
Faith 
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Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 3 of 295 (270886)
12-19-2005 5:45 PM
Reply to: Message 1 by robinrohan
12-19-2005 4:48 PM


===================================================
***Not So Great Debate thread : RobinRohan & Faith only, plus invitees***
===================================================
Probably too broad an OP. I thought you wanted this to focus on genetics, but most of what you said is about the order of the fossils. Hope you will focus this a bit better, but meanwhile just a few notes in response:
Over a hundred years ago, people did these digs and found a pattern emerging. The further down you dug, the simpler the organism was (in the form of fossils). This didn't just happen most of the time. It was always the case, if the ground was undisturbed.
Not necessarily simpler at all. What is your definition of simpler? Does the size of the genome figure in this? This site says size and complexity of the genome are not necessarily correlated but that The largest known genome belongs to a microscopic amoeba, Amoeba Dubia, which is closely followed in size by the lungfish and the Easter lily. Most sites say the lungfish has the largest: Lungfish - Wikipedia. In any case the amoeba is pretty far down the evolutionary chain so how did it get such a large genome back those bazillion years ago? There has to be SOME correlation with numbers of genes if the ToE is right.
They figured deeper meant older.
Um, certainly the lower layers would have been laid down before the upper, but if this happened to have occurred in, say, a worldwide flood, the difference in "age" would be at most days or months, and then we're only talking about the sediments. The fossil contents of the layers, however, well, that's another matter. In order to "figure that deeper meant older" in that sense, they'd have to be ASSUMING that the fossils in the lower levels were creatures that had lived their entire lives and died well before those in the upper levels, but that assumption is evo theory itself, so that to state it as you are doing is merely to beg the question. There is nothing on the face of it to show that the layers were built up over great ages of time, let alone that whole aeons passed in which the creatures encased in them lived and died. And here I'd point out what I've pointed out so many times before -- the idea that things that just lived their lives and up and died and got fossilized would do so in such predictable groupings in such predictable sediments, one at a time over millions of years and yet so relatively neatly arranged and preserved, doesn't fit reality as we know it.
Later on they found a way to date stuff, which confirmed that deeper indeed meant older, and these things were, it turned out, very old indeed.
Really, what turned out is that the dating methods appeared to confirm their wild and untenable suppositions, but many questions can be raised about these methods.
They found some strange fossils which looked like a cross between one kind of animal and another. They found a lot of these.
A lot? If so, how different are they from living things now? That is, there are some pretty odd creatures in existence now.
As time passed, they built up a "family tree" of life based on physical characteristics.
Linnaeus had already done that in the 18th century. The evos merely made correlations with his chart.
http://www.origins.tv/darwin/zoo/linnaeus.htm
===================================================
***Not So Great Debate thread : RobinRohan & Faith only, plus invitees***
===================================================
This message has been edited by Faith, 12-19-2005 05:55 PM

This message is a reply to:
 Message 1 by robinrohan, posted 12-19-2005 4:48 PM robinrohan has replied

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 Message 4 by robinrohan, posted 12-19-2005 6:04 PM Faith has replied

Faith 
Suspended Member (Idle past 1466 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 5 of 295 (270928)
12-19-2005 7:30 PM
Reply to: Message 4 by robinrohan
12-19-2005 6:04 PM


Please pick one of these topics at least for starters and develop it a bit so I'll have something to sink my teeth into.
{AbE: Never mind, see next post}
This message has been edited by Faith, 12-19-2005 09:02 PM

FEU. DIEU d'Abraham, DIEU d'Isaac, DIEU de Jacob non des philosophes et des savants. Certitude. Certitude...
-- Blaise Pascal, 1654
Gustato spiritu, desipit omnis caro.
-- Unknown, quoted by John of the Cross
"...faith in the possibility of science, generated antecedently to the development of modern scientific theory, is an unconscious derivative from medieval theology."
---Alfred North Whitehead, Science and the Modern World, 1926, p.19

This message is a reply to:
 Message 4 by robinrohan, posted 12-19-2005 6:04 PM robinrohan has not replied

Faith 
Suspended Member (Idle past 1466 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 6 of 295 (270944)
12-19-2005 8:52 PM
Reply to: Message 4 by robinrohan
12-19-2005 6:04 PM


Okay, I will answer what you have written for the sake of collegiality between execrables.
Simpler means it has less parts. A bacteria has less parts than a raccoon. Makes sense that if evolution is true, it would start out simple and then get more complicated.
Fewer parts in ALL cases? How about the plants? And what ABOUT the larger genome for more primitive creatures? Doesn't that suggest something a bit at odds with the ToE?
There's no evidence for a flood. That's just Bible talk.
I hope you've followed all the threads on this subject. There's a ton of evidence for the Flood, all co-opted to the ToE.
What I mean is that there's a predictive element here. They dug up these proto-humans and said that their ancestors were apes.
They were either humans or apes, they were not "proto" either.
Then later they did the DNA analysis and come to find out we are in fact closely related to apes. That's very convincing.
Not to me, and it's not all that close, no closer than the observed physical similarities as I said, and if you're going to say this you'll have to give the reasoning or evidence that demonstrates it.
This message has been edited by Faith, 12-19-2005 09:01 PM

FEU. DIEU d'Abraham, DIEU d'Isaac, DIEU de Jacob non des philosophes et des savants. Certitude. Certitude...
-- Blaise Pascal, 1654
Gustato spiritu, desipit omnis caro.
-- Unknown, quoted by John of the Cross
"...faith in the possibility of science, generated antecedently to the development of modern scientific theory, is an unconscious derivative from medieval theology."
---Alfred North Whitehead, Science and the Modern World, 1926, p.19

This message is a reply to:
 Message 4 by robinrohan, posted 12-19-2005 6:04 PM robinrohan has replied

Replies to this message:
 Message 7 by robinrohan, posted 12-19-2005 10:51 PM Faith has replied

Faith 
Suspended Member (Idle past 1466 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 8 of 295 (270962)
12-19-2005 11:11 PM
Reply to: Message 7 by robinrohan
12-19-2005 10:51 PM


===================================================
***Not So Great Debate thread : RobinRohan & Faith only, plus invitees***
===================================================
There's a ton of evidence for the Flood, all co-opted to the ToE.
quote:
I know of no such evidence rather than old tales.
So much for that topic, huh? You just haven't been paying attention. Most of the evidence used for Old Earth theory proves the Flood and has been covered here at EvC by many. NotSoBlindFaith has been doing a creditable job of it on the Noah's Ark thread.
They were either humans or apes, they were not "proto" either.
quote:
Well, they look pretty in between to me. They walk upright but their brains are smaller.
Terrific Evidence that, what they look like to you.
Not to me, and it's not all that close, no closer than the observed physical similarities as I said
quote:
If you are 97% genotype-similar, then your phenotype is going to be similar.
My point exactly. So it's merely redundant to point out that there is genetic similarity.
The genes determine what you look like. But my point is they were saying this long before they could do DNA analysis.
How is their genetic evidence of any more value than their earlier guesses since they merely reflect what we already know about the obvious similarity in either case?
{AbE: Also, the physical package is not the whole nature and human beings have the Image of God in us which animals don't, maimed though it is, and while I believe the spiritual nature strongly affects the physical, there are no genes for the spiritual that we can take a look at. Anyway, God's giving us a genetic complement and a physical frame that has features in common with animal bodies, again just shows economy of design, the interchangeability of parts as it were, for adapting creatures to this physical universe. Descent is just a fanciful idea.}
Then there's biogeography. Evolution provides an explanation for why isolated areas have weird creatures, like Kangaroos.
All it proves is the mechanisms of selection, geographic isolation and the like, not evolution. Creationists assume a great wealth of genetic possibilities within each Kind, that simply gets selected by the various factors that segregate populations, {AbE: meaning selections are made from these possibilities} and produces new phenotypes, new variations on the Kind, sometimes under selection pressure, sometimes just because that's how the cards were dealt. Yaro posted a picture of a mole with an organ that looks like a pink flower on its nose on the Noah's Ark thread tonight, thinking this extravagant variation on moleness must challenge creationists somehow. This idea keeps coming up here but it makes no sense, and by now ought to have been put to rest many times over, as many of us have made this argument quite well. Again, Creationism ASSUMES great variability within Kinds, and NotSoBlindFaith did a great job of answering him about that particular case too.
===================================================
***Not So Great Debate thread : RobinRohan & Faith only, plus invitees***
===================================================
This message has been edited by Faith, 12-19-2005 11:28 PM
This message has been edited by Faith, 12-19-2005 11:30 PM

This message is a reply to:
 Message 7 by robinrohan, posted 12-19-2005 10:51 PM robinrohan has replied

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 Message 10 by robinrohan, posted 12-19-2005 11:29 PM Faith has replied

Faith 
Suspended Member (Idle past 1466 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 11 of 295 (270967)
12-19-2005 11:44 PM
Reply to: Message 10 by robinrohan
12-19-2005 11:29 PM


Creationists assume a great wealth of genetic possibilities within each Kind, that simply gets selected by the various factors that segregate populations, and produces new phenotypes, new variations on the Kind
quote:
I know you believe in "kinds," and in a sense that is natural. We don't see our dogs and cats giving birth to other creatures. That's how we got the notion of kinds.
You may not assume that is how I or any other creationist got the notion of Kinds. That's to psychoanalyze our motives and it is not a valid argument. I believe in Kinds from the Bible, and my understanding of what a Kind has to be is nothing like what I would have come up on my own. What evolutionists call "species" are NOT the Kind.
But if you look at this issue between micro- and macro-, I think we can reasonably say that this is a non-issue. All evolution is "microevolution" since the changes are so minute between each generation. But let's think about this for a minute. A momma gives birth to a little baby and it doesn't look exactly like the mother or the father. That's microevolution. Now if you keep this for a real long time, and there are pressures on the outside that favor this or that change, you are going to have changes.
But again, this is far from news to a creationist, it is exactly what leads me in fact to my explanation of the natural limits to variation that I've been arguing for here. We all agree that these processes of change occur, nothing could be more commonplace. There is no proof either way yet, all we have is the evo assumption that the processes of change are open-ended versus the creo assumption that they are naturally limited by the given genetic capacity of the Kind.
And there is no way that this could stop just because you are a certain "kind."
You do not know that there is no way that this could stop and I've been arguing in fact for a way that it could indeed stop and I believe it does, because of the inexorable tendency of all the processes that divide populations and reduce genetic potentials at the same time they create new variations and even new species. My execrable science is of course a handicap when it comes to grasping enough of the genetics to make the case better, but I have NO doubt this is the right direction.
What does this mean, "kind"? It doesn't mean anything.
It will some day be genetically defined, if Jesus doesn't return sooner, and it will certainly have to do with the boundaries of such categories as Catness and Dogness and Simianness and arachnidness and so on.
My point exactly. So it's merely redundant to point out that there is genetic similarity
quote:
There's a very good reason why they are so genetically similar. They had a common ancestor. Now if you go down the line and look at other creatures, such as me and my cat, you will find some genetic similarities, but not as many. What does that tell you? It tells you that we diverged a much longer time ago.
What can I do but repeat myself? We have two conflicting theories here and if nothing else it would be a very good thing if evos, or at least you, representing the evos, would recognize this fact: that your model is genetic descent and creationists' model is design -- There is absolutely nothing on the face of it that requires descent as the explanation of these similarities you are talking about. Design economy works just fine.
This message has been edited by Faith, 12-19-2005 11:49 PM

FEU. DIEU d'Abraham, DIEU d'Isaac, DIEU de Jacob non des philosophes et des savants. Certitude. Certitude...
-- Blaise Pascal, 1654
Gustato spiritu, desipit omnis caro.
-- Unknown, quoted by John of the Cross
"...faith in the possibility of science, generated antecedently to the development of modern scientific theory, is an unconscious derivative from medieval theology."
---Alfred North Whitehead, Science and the Modern World, 1926, p.19

This message is a reply to:
 Message 10 by robinrohan, posted 12-19-2005 11:29 PM robinrohan has replied

Replies to this message:
 Message 12 by robinrohan, posted 12-20-2005 12:01 AM Faith has replied

Faith 
Suspended Member (Idle past 1466 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 13 of 295 (270977)
12-20-2005 12:37 AM
Reply to: Message 12 by robinrohan
12-20-2005 12:01 AM


Well, pardon me. I was just going by a common sense idea that we all have a notion of "kinds," Bible readers or not. A dog's a dog, a cat's a cat. I figured that's where that came from. I had no idea it came from the Bible.
No problem. My mistake. I guess thought by now anybody who hangs out at EvC would know that creationists get the Kinds from the Bible.
But again, this is far from news to a creationist, it is exactly what leads me in fact to my explanation of the natural limits to variation that I've been arguing for here
quote:
You haven't mentioned why there would be any limits. Now, I agree there are certain physical limitations. For example, a bird that was too heavy wouldn't be able to fly. But other than things like that, I don't see any limits.
Well the limits I've been talking about have to do with limits to genetic variation by population reducing events that separate different portions of a gene pool from one another.
There is absolutely nothing on the face of it that requires descent as the explanation of these similarities you are talking about. Design economy works just fine.
quote:
I don't think so, Faith. The naturalistic explanation is much more reasonable. We know there is Nature. We don't know there is God.
I do. But in any case design economy works just fine, as do all the creationist explanations. Nothing whatever makes the evo explanation any more compelling.

Psa 14:1 of David. The fool hath said in his heart, [There is] no God.
Psa 107:8-14: Oh that [men] would praise the LORD [for] his goodness, and [for] his wonderful works to the children of men! For he satisfieth the longing soul, and filleth the hungry soul with goodness. Such as sit in darkness and in the shadow of death, [being] bound in affliction and iron; Because they rebelled against the words of God, and contemned the counsel of the most High: Therefore he brought down their heart with labour; they fell down, and [there was] none to help. Then they cried unto the LORD in their trouble, [and] he saved them out of their distresses. He brought them out of darkness and the shadow of death, and brake their bands in sunder.
Hbr 2:14-16 Forasmuch then as the children are partakers of flesh and blood, he also himself likewise took part of the same; that through death he might destroy him that had the power of death, that is, the devil; And deliver them who through fear of death were all their lifetime subject to bondage. For verily he took not on [him the nature of] angels; but he took on [him] the seed of Abraham.
1Cr 15:55-57 O death, where [is] thy sting? O grave, where [is] thy victory? The sting of death [is] sin; and the strength of sin [is] the law. But thanks [be] to God, which giveth us the victory through our Lord Jesus Christ.

This message is a reply to:
 Message 12 by robinrohan, posted 12-20-2005 12:01 AM robinrohan has replied

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 Message 15 by robinrohan, posted 12-20-2005 1:01 AM Faith has replied

Faith 
Suspended Member (Idle past 1466 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 17 of 295 (270991)
12-20-2005 1:23 AM
Reply to: Message 15 by robinrohan
12-20-2005 1:01 AM


Robin, this debate is over if you are going to refuse to accept my premises.

This message is a reply to:
 Message 15 by robinrohan, posted 12-20-2005 1:01 AM robinrohan has replied

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 Message 18 by robinrohan, posted 12-20-2005 1:25 AM Faith has replied

Faith 
Suspended Member (Idle past 1466 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 19 of 295 (271001)
12-20-2005 2:15 AM
Reply to: Message 18 by robinrohan
12-20-2005 1:25 AM


You have to debate. You can't declare there is no evidence for God. I can certainly show evidence for God and have done so many times, but it's not appropriate in this thread. Even when God is not mentioned, you see that God is my premise for the arguments for creationism but you can't just declare that God doesn't exist. For purposes of this argument just focus on the points I'm making. I believe my arguments are logical, and you can't disqualify them just because you don't believe in God. This won't wash.
This message has been edited by Faith, 12-20-2005 02:16 AM

Psa 14:1 of David. The fool hath said in his heart, [There is] no God.

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Faith 
Suspended Member (Idle past 1466 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 20 of 295 (271002)
12-20-2005 2:24 AM
Reply to: Message 15 by robinrohan
12-20-2005 1:01 AM


Well the limits I've been talking about have to do with limits to genetic variation by population reducing events that separate different portions of a gene pool from one another.
quote:
"population reducing events"? What on earth are you talking about?
I guess you haven't followed those arguments. I'm not up to laying it all out at the moment.
I do. But in any case design economy works just fine, as do all the creationist explanations. Nothing whatever makes the evo explanation any more compelling.
quote:
No, it's not "in any case." In order to have a design, you need a designer. So you do know, but the rest of us don't. There's no evidence for God, Faith. Nothing objective. It's just your feelings.
Not that I don't respect your feelings, you understand. But they are only feelings.
This is what I was objecting to. You need a designer, that's for sure, but this is just as valid a theory as the evo theory, and there is plenty of evidence for God, which has been given here many times by many posters.
You may not declare that this is "just my feelings." At the very least you have to give your own evidence if this is really a debate.
This message has been edited by Faith, 12-20-2005 03:08 AM

Psa 14:1 of David. The fool hath said in his heart, [There is] no God.

This message is a reply to:
 Message 15 by robinrohan, posted 12-20-2005 1:01 AM robinrohan has replied

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 Message 21 by robinrohan, posted 12-20-2005 9:46 AM Faith has replied

Faith 
Suspended Member (Idle past 1466 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 22 of 295 (271053)
12-20-2005 9:56 AM
Reply to: Message 16 by robinrohan
12-20-2005 1:11 AM


Re: my 'expert' opinion
Well, what about the proof from the digs? The deeper you dug, the simpler the organism?
Interesting question. Wonder what Pink S will have to say. Sure seems to me that that's one of those old ideas that launched the ToE that is no longer considered to be true. There seem to be a lot of those floating around.

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 Message 16 by robinrohan, posted 12-20-2005 1:11 AM robinrohan has not replied

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 Message 29 by pink sasquatch, posted 12-20-2005 7:08 PM Faith has replied

Faith 
Suspended Member (Idle past 1466 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 23 of 295 (271087)
12-20-2005 11:15 AM
Reply to: Message 21 by robinrohan
12-20-2005 9:46 AM


=============================================================
NOT-SO-GREAT DEBATE THREAD. ROBINROHAN AND FAITH ONLY, GUEST POSTERS BY INVITATION ONLY.
=============================================================
quote:
population reducing events"? What on earth are you talking about?
quote:
I guess you haven't followed those arguments. I'm not up to laying it all out at the moment.
You don't have to go into great detail. Just give me an idea of what you're talking about.
Not all that easy but here goes. By the way I just posted on the subject again on the "phylogeographic" thread, where I did a lot of that all along. My very first thread at EvC back in February or March or so was on this topic too, that had something like Natural Limits in the title. So if I can't get it spelled out here clearly enough, I'll see if I can track that down and link it.
The basic idea is that a Kind may turn out to be defined by natural limits to variation which must ultimately be reached if mutation turns out not to be the great generator of new useful genetic possibilites it is claimed to be. This comes about by the usual processes I've seen called Evolutionary Processes on sites about Population Genetics, such as
migration (the moving of part of a population away from the "parent" population),
natural selection {which singles out a portion of a population for its adaptive genes), changing the frequencies at least so that the adaptive genes proliferate while the unadaptive are either eliminated altogether or simply reduced in the population and not expressed;
bottleneck, which severely isolates a small portion of a population, in which the alleles are severely reduced from what was in the parent population.
All these are processes that divide populations initially reducing the population of course -- you have fewer numbers of individuals, that is, and new frequencies of alleles in both new populations (or new and old or in the one that survives if the other dies), [which is the usual definition of evolution (change in allelic frequencies over time),] and in the process reduce the genetic diversity. Fewer alleles = less diversity. Either or both new populations may increase in numbers after the split, of course, but the new allelic frequencies will bring new traits to expression, the changes that are called microevolution. As a general rule, that does have some exceptions: New traits = less genetic diversity.
It doesn't always happen in every population shift, even though frequencies may shift. That is, stability or equilibrium does occur. But the only processes that actually ADD anything genetically are mutation and recombining populations, or hybridization, and the latter doesn't add anything NEW, merely reintroduces genetic possibilities that were lost in earlier splits. Mutation is a topic unto itself.
SO the overall effect of all these processes, with the exception of mutation, is the reduction of genetic diversity. But interestingly, these are called "Evolutionary" Processes, as they produce the phenotypic "microevolutionary" changes that are taken for evidence of the ToE. But if in the process of producing these changes the population loses genetic diversity, this would seem to be a change in the direction away from evolution. You get new phenotypes by bringing some alleles to expression at the expense of others -- by eliminating or reducing the frequency of others. All these population dividing processes do this. It is just funny that the very processes that produce the change, even all the way out to actual speciation, are processes that reduce diversity.
If these processes continue out to their ultimate conclusion, you get new types that may be highly adapted but also genetically compromised to an extreme. This is seen in domestic breeding all the time. They have been developing ways to cope with this effect, but the point is that it IS the natural effect of these processes -- new traits at the cost of reduced genetic diversity.
So these Evolutionary Processes produce change, certainly, but they also produce degrees of genetic depletion, even to a great degree over time, out of which which further change becomes less likely and less possible, the opposite of what evolution needs if it works.
============================================================
Sorry, I rushed through that and I'm sure it's not as clear as it should be, but maybe I can clean it up later.
============================================================
quote:
You need a designer, that's for sure, but this is just as valid a theory as the evo theory, and there is plenty of evidence for God, which has been given here many times by many posters.
quote:
OK, no problem. I waive that point.

Thanks.
=============================================================
NOT-SO-GREAT DEBATE THREAD. ROBINROHAN AND FAITH ONLY, GUEST POSTERS BY INVITATION ONLY.
=============================================================
This message has been edited by Faith, 12-20-2005 11:19 AM

This message is a reply to:
 Message 21 by robinrohan, posted 12-20-2005 9:46 AM robinrohan has replied

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 Message 24 by robinrohan, posted 12-20-2005 12:35 PM Faith has replied

Faith 
Suspended Member (Idle past 1466 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 25 of 295 (271117)
12-20-2005 12:52 PM
Reply to: Message 24 by robinrohan
12-20-2005 12:35 PM


If there were a group of 100 lizards, and they got separated into 2 groups of 50, then each member of each group will be mating with other members in that group, and they will continue to change through the generations. It doesn't matter if it's a 100 or 50. And if they are successful, pretty soon you've got 5000--all sorts of combinations.
Yes, this is what I'm talking about. But what makes the changes possible is the initial change in genetic frequencies caused by the separation, which will involve a reduction and even the elimination of some alleles that were present in the original combined population. Meanwhile the other population will have those particular alleles to develop changes in a different direction, and a reduction or even complete absence of those that now dominate in the split off group. This is how change happens, through changing allelic frequencies involving a reduction or elimination of some, and if it involves the elimination of some, this will amount to an overall reduction in genetic diversity.
I would think this splitting would tend to make the groups different from each other faster.
Yes, it does. That's why the processes that cause the splitting are called Evolutionary Processes.
If both groups were successful, after a long time they would look a little different from each other, and after a longer time they would look very different.
Exactly.
But this is happening because of the changed allelic frequencies, which in some cases, such as bottleneck and severe natural selection for instance, are an out and out elimination of some alleles, which is a reduction in genetic diversity, which is contrary to what the ToE would seem to need if it were true.

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 Message 24 by robinrohan, posted 12-20-2005 12:35 PM robinrohan has replied

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 Message 27 by robinrohan, posted 12-20-2005 4:16 PM Faith has replied

Faith 
Suspended Member (Idle past 1466 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 28 of 295 (271188)
12-20-2005 7:07 PM
Reply to: Message 27 by robinrohan
12-20-2005 4:16 PM


=============================================================
NOT-SO-GREAT DEBATE THREAD. ROBINROHAN AND FAITH ONLY, GUEST POSTERS BY INVITATION ONLY.
=============================================================
Ok, I've got all this mastered.
I'm SO impressed.
Mere imperfect replication by itself could not produce evolution. If not for these other processes there would be no evolution.
1. selection
2. mutation
3. gene flow
4. genetic drift
5. biased variation
6. movable elements
7. nonrandom mating.
So if it wasn't for these things going on, there would not be enough gene variety for any life form to evolve over time. All of these processes don't have to occur, but some of them do. That's how you get to "macroevolution."
Cute. 1, 3, 4 and 7 concern populations: 1, Selection, 4, genetic drift, and 7, nonrandom mating add nothing new genetically, and over time subtract diversity as I've been describing. Selection selects against alleles as well as for, genetic drift is simply allele selection by chance rather than effect, again selecting against as well as for; selective mating also selects against as well as for. Anything that eliminates alleles reduces genetic diversity.
3. Gene flow adds BACK what already existed in the population, also adding nothing new, like hybridization. You get increased genetic diversity for the time being, but only until equilibrium is reached or one of the other subtractive processes comes along.
For evolution to be possible beyond "microevolution" NEW alleles must be added, and none of these four adds anything.
SO four out of the seven do NOT further evolution beyond microevolution, but in fact strongly suggest that microevolution is the absolute limit of such processes.
2, 6 and 7 {AbE: Should have been 2, 5 and 6} are all about genetics per se, rather than populations, apparently versions of mutation (I googled them but haven't studied them). Mutation is the only process that could possibly add anything to the mix.
Others have insisted that mutation does indeed add diversity to an extent that overcomes all the selecting-reducing processes I keep bleating execrably about. So I guess you'd better study up on mutation if you want to defeat me. BUT it would be nice if you'd at first get the point about these processes that reduce genetic diversity and limit evolution in such a way as to define a Kind.
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NOT-SO-GREAT DEBATE THREAD. ROBINROHAN AND FAITH ONLY, GUEST POSTERS BY INVITATION ONLY.
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This message has been edited by Faith, 12-20-2005 07:10 PM
This message has been edited by Faith, 12-21-2005 02:08 AM

This message is a reply to:
 Message 27 by robinrohan, posted 12-20-2005 4:16 PM robinrohan has replied

Replies to this message:
 Message 31 by robinrohan, posted 12-20-2005 11:00 PM Faith has replied
 Message 33 by robinrohan, posted 12-21-2005 3:09 AM Faith has replied

Faith 
Suspended Member (Idle past 1466 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 30 of 295 (271191)
12-20-2005 7:12 PM
Reply to: Message 29 by pink sasquatch
12-20-2005 7:08 PM


Re: question from an interloper
Yes, you are an invitee, please comment. Robin asked what happened about the digs.

This message is a reply to:
 Message 29 by pink sasquatch, posted 12-20-2005 7:08 PM pink sasquatch has not replied

Faith 
Suspended Member (Idle past 1466 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 32 of 295 (271232)
12-20-2005 11:22 PM
Reply to: Message 31 by robinrohan
12-20-2005 11:00 PM


2, 6 and 7 are all about genetics per se, rather than populations, apparently versions of mutation (I googled them but haven't studied them). Mutation is the only process that could possibly add anything to the mix.
quote:
... #7 is a preference for one particular type of a mate.
Sorry, I meant 2, 5 and 6 rather than 6 and 7. Sexual preference is a population category. I don't know what movable elements is, {AbE: goofed again, not moveable elements but variable whatever it was} but it's something to do with genetics as such rather than populations.
I'll study up some more.
OK
This message has been edited by Faith, 12-20-2005 11:29 PM

This message is a reply to:
 Message 31 by robinrohan, posted 12-20-2005 11:00 PM robinrohan has not replied

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