Total Y chromosome replacement events drove intelligence, not lekking where guys debate philosophy.
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If those were the only two possibilities, the Y-chromosome-total-war one might actually be preferable to liberals! (There's no sex difference in general intelligence, but maybe there would have been if it had been sexually selected.)
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No selective pressure on women though since they're prizes to be taken by war bands and you don't throw them away for lack of intelligence. Can very easily have arbitrarily large sex differences if there's selective pressure on one sex and weaker pressure on the other.
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"No difference in general intelligence" was an empirical claim, not a theoretical one. Unless you want to accuse Arthur Jensen (!) of political correctness??pic.twitter.com/yhIN7L4Pl7
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There was a time when Cal Tech (apparently) admitted students purely on academic merit. But that started to change a long time ago, when the percentage female doubled from one year to the next.
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Replying to @gcochran99 @zackmdavis and
Big change in enrollment was in the early 90s, went from 15% to 30% women from '89 to '90. Other policies probably made a difference too - most of the student dorms had co-ed bathrooms for while, I talked to multiple prefrosh who were skeeved off by that.
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Replying to @arguablywrong @gcochran99 and
I'm biased though, I met my wife there. Apparently back before it went coed they'd set up social activities with the girls at the local community college. By the time I was there, you were so busy it was local girls or nothing, which meant for most it was nothing.
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Replying to @arguablywrong @gcochran99 and
As of ~20 yrs ago, everyone was minimally smart enough to manage, a substantial minority (more female than male) couldn't hack the stress, and it was fucking obvious that all the smartest guys were guys.
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Replying to @arguablywrong @gcochran99 and
Chris Hirata! (Greg's own precocious pup might know him.)
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I'll bet he didn't make that mistake twice. To him it was an unknown unknown - he didn't know that he didn't know because of lack of experience.
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