Is 90% of All EvoPsych False? | Richard Carrier Blogs

(4) “Human behavioral genetics has also identified genetic variation underlying an extensive list of cognitive and behavioural characteristics,” thus challenging any claim that certain traits were adaptively selected for—when clearly, after tens of thousands of years, the variance was clearly adaptively selected for. That’s why it remains robust across all populations. Notably, for example, psychological traits are far more similar between the sexes, than basic physical characteristics like height and innate muscle development, greatly undermining a key analogy in EvoPsych reasoning—in fact, as everyone agrees, women vary far more among each other in psychological attributes than they do from men, and vice versa, which indicates humans have been evolving toward cognitive parity between the sexes, rather than adaptive differentiation, undermining another common assumption in EvoPsych research.

http://freethoughtblogs.com/carrier/archives/9141

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