Might as well state it from time to time. This is my theorywhich I started laying out at EvC forum maybe twenty years ago or so. It evolved ocver time to get somre refined but it's the same idea. I calledc it back then "Evolution Defeats Evolution" and I still rather like that pithy way of saying it, but to be more precise it's Natural Selection, the supposed Engine of Evolution, originally proposed by Darwin and reiterated all the time by Richard Dawkins, that kills evolution. Or brings it to a stop.
This is the observation: The formation of new populations or subspecies of any sexually reproducing creature rquires the3 reduction of genetic diversity. The simplest way this happens is that alleles for competing traits drop out of the population as the new traits or phenotypes become established in the population. Another way to say tyhis is that you get more homozygosity in the new population than the parent population had. Fixed loci is anotherway of saying that. Paired alleles, the allele for the heterozygous form of that gene dropping out.
How do I know this? I inferred it originally from the examples of doestimc breeding, which is where Darwin himself got the idea of natural Selection in thefirst place, and then from the example of endangered species, the cheetah being the prime example. The cheetah i genetically highly comkpromkised, having many fixed loci or homozygous genes for its salient traits. this is what endagers it wlthough that's a side issue in this discussionm. The point is that you have the cheetah's traits or phenotypc because it doesn't have alleles that compete with those traits. Those all3eles no doubt belonged to the parent population from which it was isolated in the first place, but they didn';t make it into the new population of cheetahs.
In domestic breeding at least as it used to be done the whole point was to lose the traits for breeds you didn't want. You selected traits and bred animaols that had only those traits until you got a pure breedd, and when you have that breed you have an animal with many fixed loci for those traits and have lost the genetic material for competing traits.
Breeding and engangedred specieas are the extremes of the processes that occur at a much slower rate in the development of all variations in all sexually reproducing animals. There ids always, no exceptions, a reduction in genetic diversity that is necessary to the devleelopment of the new variation. Always.
I've answered how mutations don't do anything to correct this situation, and I've argued why Noah's family on the arik, and all the animals on the ark wren't endangered species. I don't have room for it in a post these days.
But the point is that getting a new "species" or completely new version of any animal, requires the loss of bgenetic material, that's is the opposite of what would be required if the theory of evolution were true. Itg's not true. Evolution is impossible from a genetic point of view.
This along with the fact that the strata are not time periods absolutely kills evolutionh. Gosh it would nice if someone came along who saw how this is true.
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