Human subspeciation is feared as an assault on human dignity. 160 years after Darwin, people have still not fully come to terms with the fact that we are animals. I think the denial of race, which has garnered a very thick scientific-sounding veneer, is a manifestation of this.
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Where is the genetic evidence? Heritability doesn't show causation. So that's out of the question.
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There is genetic evidence and you know it. eg https://www.nature.com/articles/ng.3869 … As well as twin studies and adoption studies, which are in fact useful for determining how much genetic influence there is on a trait.
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Twin studies and adoption studies are highly flawed. GWAS can't show causation.
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Yes, and skin color, height, weight, sprinting ability, swimming ability, etc. are all randomly distributed across all human groups too
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Those are verifiable traits with actual tests for them which is a far cry from IQ.
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Is "ability to build / maintain complex civilizations" in the aggregate not enough of a test of the individuals involved? So we scrap the concept of IQ. So what? Blacks are still just "dumb" and "aggressive" compared to whites. At least at the layman's psychometric level.
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What causes aggressive behavior? Why that and not this as 'tests of intelligence'?
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Free testosterone combined with some other genes. Aggression and inability to verbalize. I'm not sold on IQ either. I read some of your essays and I see your point. I also saw "dumb" blacks sell phone books inside computer boxes to "smart" white folks in the hood frequently.
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So you really want to throw the whole of historical particularism to the wind here? I suggest you rephrase your idea as a hypothesis and thus allow for the refutation of it in a scientific manner
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You're decades behind the times on this debate.
End of conversation
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