Have been pondering my response to @JohnHolbein1 q about what good your field has done for the world. It feels strange to acknowledge that when your field has been applied in the real world, the net impact has been overwhelmingly negative (discrimination, genocide)https://twitter.com/drderringer/status/1099026921680236545 …
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The message of modern behavior genetics is ‘it’s complicated’. We still don’t do a great job (overall) of getting that message to the public, policy folks, etc, hence the hubbub over (behavioral, cognitive) designer babies
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The reality is - ethics aside (as bad as that sounds) - genetically engineering babies for intelligence etc. probably wouldn’t work. All of our associations are inextricably and unknowably culture-bound (both wrt to time & place)
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Replying to @drderringer
Selection pressure times additive heritability of the trait yields response to selection in the trait. Why wouldn't this be true for human intelligence, exactly?
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Replying to @primalpoly
By designer babies & genetic engineering, I mean CRISPR & embryo selection & similar methods in-the-news based on specific identified variants (incl polygenic scores), not eg natural or sexual selection or assortative mating
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Embryo selection based on polygenic scores for IQ seems a LOT more feasible than CRISPR for IQ, to be sure. And a lot closer to traditional natural selection in terms of population genetics.
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Replying to @primalpoly @drderringer
Cows. We do this with cows.https://www.youtube.com/watch?time_continue=101&v=GafZSH2GztQ …
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