@IWFBuckley @JayMan471 let's take parenting. In general it looks like parenting variation within the normal range does not cause major
@IWFBuckley @JayMan471 Good example of changing environment resulting in genetic changes. Mating choices have changed a lot.
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@JayMan471 society is shaped by genetics, memes, tech, and the natural world -
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@IWFBuckley by the way, regarding randomness, a lot washes out when you average out large groups. You're usually left with mostly genetics
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@IWFBuckley do you mean 20% environment? On an individual basis, the heritability of IQ is 60-85%, with the remainder mostly random
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@HbdNrx @IWFBuckley Have they? In any case, there's a huge difference between within-cohort vs between-cohort environment. -
@JayMan471 @IWFBuckley at the very least, we're seeing a lot more interracial mating.I'd say that women's preferences have changed generally -
@HbdNrx@JayMan471 @IWFBuckley isn't it men who are generally more on-board with personally marrying outside of their traditional group? -
@HbdNrx@JayMan471 @IWFBuckley whether that be ethnicity, religion, class etc. -
@robvfour@JayMan471 @IWFBuckley oh sure, but I suspect women's preferences have changed more in recent decades
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