Selection went especially bonkers during the Bronze Age (around 3,000 years ago). That's when gene frequencies for everything from immune function to body fat to intelligence were most in flux. Over the last 10,000 years, selection pushed the genetic predictor of cognitive performance up by roughly a full standard deviation — most of it between 4,000 and 2,000 years ago.
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If only we allowed it to. But what generally gets in the way is something called repugnance, which we'll get to. And um and that we that we should overcome our a priori ideas when they're wrong, which is what science is all about.
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Reason and empirical evidence should be applied to public policy and could make the world a better place if only we allowed it to. But what generally gets in the way is something called repugnance
Origins Podcast
I would say in American society, forward momentum has always been met by retrenchment. Going all the way back to reconstruction after eight years of active effort to create full citizenship for the freed slaves, there came decades after that of retrenchment.
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