+In light of these _empirical_ observations, Yudkowsky's suggestion that an ignorant comittment to an "Aristotelian binary" is the main reason someone might care about the integrity of women's sports, is revealed as an absurd strawman. This just isn't something any scientifically-literate person would write if they had actually thought about the issue _at all_, as contrasted to having _first_ decided (consciously or not) to bolster one's reputation among progressives by dunking on transphobes on Twitter, and wielding one's philosophy knowledge in the service of that political goal. The relevant empirical facts are _not subtle_, even if most people don't have the fancy vocabulary to talk about them in terms of "multivariate trait distributions".
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+Yudkowsky's claim to merely have been standing up for the distinction between facts and policy questions doesn't seem credible: if you _just_ wanted to point out that the organization of sports leagues is a policy question rather than a fact (as if anyone had doubted this), why would you throw in the "Aristotelian binary" strawman and belittle the matter as "humorous"? There are a lot of issues that I don't _personally_ care much about, but I don't see anything funny about the fact that other people _do_ care.
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+I spend a few paragraphs picking on the "sports segregated around an Aristotelian binary" remark, because sports is a case where the relevant effect sizes are _so_ large as to make the point hard for all but the most ardent gender-identity partisans to deny.
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+[TODO sentences about Lia Thomas/Cece Tefler/Andrea Yearwood; feats occured after Yudkowsky's 2018 Tweets, but I claim that this kind of thing was easily predictable to anyone familiar with sex differences]
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+But the point is general.
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+If any concrete negative consequence of gender self-identity categories is going to be waved away with "Oh, that's a mere _policy_ decision that can be dealt with on some basis other than gender, and therefore doesn't count as an objection to the new definition of gender words",
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+The categories we use for policy decisions are very closely related to the categories we use