Natural selection …is not the fundamental cause of evolution.
Masatoshi Nei
Science continues to destroy Darwinism. A prominent member of the National Academy of Sciences, Masatoshi Nei, trashed neo-Darwinism in the recent peer-reviewed article: The new mutation theory of phenotypic evolution.
Haldane’s dilemma showed mathematically that natural selection could not be the major driving force of evolution. Haldane’s dilemma lead in part to the non-Darwinian theory of molecular evolution known as the “neutral theory of molecular evolution”. Neutral theory asserted natural selection was not the principal driving force of molecular evolution. However, when molecular neutral theory was presented to the world in the 1960’s, it was politically incorrect to assert the obvious consequence of the neutral theory of molecular evolution, namely: morphology, physiology, and practically anything else made of molecules would NOT be principally shaped by natural selection either.
In What are the speed limits of naturalistic evolution?, I pointed out:
And if Haldane’s dilemma were not enough of a blow to Darwinian evolution, in the 1960’s several population geneticists like Motoo Kimura demonstrated mathematically that the overwhelming majority of molecular evolution was non-Darwinian and invisible to natural selection. Lest he be found guilty for blasphemy, Kimura made an obligatory salute to Darwin by saying his non-Darwinian neutral theory “does not deny the role of natural selection in determining the course of adaptive evolution”. That’s right, according to Kimura, adaptive evolution is visible to natural selection while simultaneously molecular evolution is invisible to natural selection. Is such a position logical? No. Is it politically and intellectually expedient? Absolutely!
But now 4 decades later, the inevitable consequence of Haldane’s dilemma and Kimura’s neutral theory may be ending the uneasy truce between neo-Darwinists and neutralists.
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