-Okay, technically, Yudkowsky's new Tweets specifically talked about pronouns and policy decisions, which (one could argue) is a distinct issue from my dispute with Alexander about category boundaries. And I agree that questions about who should use which bathroom are policy decisions and not matters of fact. But the question of what categories epistemically "carve reality at the joints", is _not unrelated_ to the question of which categories to use in policy decisions! Connotatively, and in the context of elite intellectual American culture in which "trans women are women" is dogma, it's hard to read the Tweets Yudkowsky published as anything other than an attempt to intimidate and delegitimize people who want to use language to reason about sex rather than gender identity. [For example](https://twitter.com/ESYudkowsky/status/1067490362225156096), deeper in the thread, Yudkowsky wrote:
+... not _actually_ inexplicable. There was, in fact, an obvious explanation: that Yudkowsky was trying to bolster his reputation amongst progressives by positioning himself on the right side of history, and was tailoring a fake rationality lesson to suit that goal. But _Eliezer Yudkowsky wouldn't do that_. I had to assume this was a honest mistake.
+
+At least, a _pedagogy_ mistake. If Yudkowsky _just_ wanted to make a politically neutral technical point about the difference between fact-claims and policy claims _without_ "picking a side" in the broader cultural war dispute, these Tweets did a very poor job of it. I of course agree that pronoun usage conventions, and conventions about who uses what bathroom, are not, themselves, factual assertions about sex chromosomes in particular. I'm not saying that Yudkowsky made a false statement there. Rather, I'm saying that it's _bizarre_ to condescendingly point this out _as if it were the crux of contemporary trans-rights debates_. Conservatives and gender-critical feminists _know_ that trans-rights advocates aren't falsely claiming that trans women have XX chromosomes. But the question of what categories epistemically "carve reality at the joints", is _not unrelated_ to the question of which categories to use in policy decisions: the _function_ of sex-segrated bathrooms is to protect females from males, where "females" and "males" are natural clusters in configuration space that it makes sense to want words to refer to.
+
+Even if the thread only explicitly mentioned pronouns and not the noun "woman", in practice, and in the context of elite intellectual American culture in which "trans women are women" is dogma, I don't see any _meaningful_ difference between "you're not standing in defense of truth if you insist on a word, brought explicitly into question, being used with some particular meaning" and "I can define the word 'woman' any way I want." (About which, the Yudkowsky of 2008 had some harsh things to say, as excerpted above.) It's hard to read the Tweets Yudkowsky published as anything other than an attempt to intimidate and delegitimize people who want to use language to reason about sex rather than gender identity. [For example](https://twitter.com/ESYudkowsky/status/1067490362225156096), deeper in the thread, Yudkowsky wrote: