Re:Book Review: The Body Keeps the Score
by chrisweekly on Friday November 15, 2019 @08:22AM
(#21544521)
You're both right, of course. I was thinking in terms of evolutionary psychology and neuroanatomy -- areas where the timescales are "glacial" compared to the rise in lactose tolerance over a handful of generations.
[ Parent
| on HN ]
Re:Book Review: The Body Keeps the Score
by bobcostas55 on Friday November 15, 2019 @08:32AM
(#21544592)
There's nothing inherently slow about selection on psychological traits. To give just one striking example, there is extremely rapid selection against intelligence in advanced societies going on right now, at a rate of about 0.25-0.3 standard deviations per century.
US: https://www.pnas.org/content/suppl/2016/05/25/1523592113.DCS... (Table S11)
Taiwan: https://www.sciencedirect.com/science/article/abs/pii/S01602...
Iceland: https://www.dropbox.com/s/9vq5t6urtu930xe/2017-kong.pdf