Dark skinned people outside of Africa, e.g., in India, aren't known for running. The sub-Saharan Olympic advantage in track is probably due in part to genetic biomechanical differences, such as relatively lighter calves making for a more efficient stride.
@ewanbirney https://twitter.com/ewanbirney/status/1188595937456906240 …
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Replying to @Steve_Sailer @ewanbirney
"For any given sitting height—that is, the height of one’s head when one is sitting in a chair—Africans or African Americans have longer legs than Europeans."pic.twitter.com/vGJ3it2uHk
3 replies 4 retweets 21 likes -
"[From] 1,265 Olympians from the 1968 Olympics…scientists state that “the most persistent…differences” within sports are the narrow hip breadths and longer arms and legs of athletes with recent African ancestry. “They appear in virtually all the events,”pic.twitter.com/UQTQtcNjQq
1 reply 5 retweets 10 likes -
"Both white and black players in the NBA have wingspan-to-height ratios much greater than the population average, but there’s a sizable gap between white and black players. The average ratio for a white American NBA player is 1.035, and for an African American NBA player 1.071.pic.twitter.com/WCH9gBVSmh
1 reply 0 retweets 6 likes -
I think the main thing we've established is David Epstein is 1000x more informed about human genetics than Birney is. Someone want to send him a complimentary copy of this book to brush up on the basics?
2 replies 0 retweets 9 likes -
Technically physical anthropology, and Birney probably doesn't know any.
1 reply 0 retweets 6 likes
He knows even less than "doesn't know any" - he knows things that aren't so.
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