> There is no strong reason to think that genes unusually prevalent among Kenyans play a large role in success at distance running. This contradicts scientific

> There is no strong reason to think that genes unusually prevalent among Kenyans play a large role in success at distance running. This contradicts scientific findings. > Genes significantly influence athletic performance > Keynans are great at distance running > |- Keynans have genes that make them better at distance running. I've been discussing Kenyan and Ethiopian runners for brevity, but as you point out, I should have been more specific: this chain of reasoning should conclude with the much more compelling observation that "from 1980 on, ~40% of the top honours available to men in international athletics at these distances (Olympic medals, World Championships medals, and World Cross Country Championships honours) have been earned by Kalenjin." https://en.wikipedia.org/wiki/Kalenjin_people https://en.wikipedia.org/wiki/Kalenjin_people > The article points out that Somalians and Kenyans don't (on average) have particularly similar somatotypical characteristics, and yet both nations have produced exceptional distance runners. The Kalenjin identity predates modern borders of Kenya and Ethiopia, which torpedoes the "but multiple nations have produced elite runners" argument. They are massively disproportionately successful at distance running, and it's well-established that their specific genotypes are key to their success -- not the only key, but a major part. None of this is "bluster." We can politely disagree here all we want, but the fact is that we both have near-instant access to reams of supporting evidence for the fact that Kalenjin genes uniquely predispose them to distance-running prowess, similar to how the Bajau of Southeast Asia are genetically predisposed to have 50% bigger spleens as a free-diving adaptation (https://en.wikipedia.org/wiki/Sama-Bajau#Free-diving_adaptations https://en.wikipedia.org/wiki/Sama-Bajau#Free-diving_adaptat...), or how Tibetans are adapted across multiple genes to thrive at high altitude in a different way from Kalenjin or Andeans (https://www.theguardian.com/science/2010/jul/02/mutation-gene-tibetans-altitude https://www.theguardian.com/science/2010/jul/02/mutation-gen...), or any of the other specific examples of genetic adaptation to ancestral environments whose existence might be uncomfortable to some, but are nevertheless real.