This is very suggestive -- seems consistent with my impression that the e.g. greater mean cranial capacity of far-northern tribes is being preferentially directed toward spatial and navigation skills that are not as heavily valued by current-economy-focused IQ tests.
Differences in ability profiles and their related interest differences probably explain a decent chunk of observed racial differences between occupations. https://www.sciencedirect.com/science/article/pii/S0191886999000616 … See also paper by Pesta https://openpsych.net/paper/4 pic.twitter.com/mCtxRwOtig
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Almost no one bothers to measure spatial ability anymore so we don't really know what it correlates with. (why don't they? Well, who has an advantage on spatial ability?)
End of conversation
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