Who, from my experience, love teaching that “race isn’t genetic,” “race is a social construct,” and “racial sports-performance differences are all due to culture,” really ought to read this Slate piece. It’s great in that it blows those arguments out of the water (the author calls people who believe them “liberal creationists”), but keeps things in perspective: While athletic genes are more common in some races than others, these are disparities rather than categorical differences.