+At first I did this in the object-level context of gender on this blog, in ["The Categories Were Made for Man to Make Predictions"](/2018/Feb/the-categories-were-made-for-man-to-make-predictions/), and the ["Reply on Adult Human Females"](/2018/Apr/reply-to-the-unit-of-caring-on-adult-human-females/).
+
+Later, after [Eliezer Yudkowsky joined in the mind games on Twitter in November 2018](https://twitter.com/ESYudkowsky/status/1067183500216811521) [(archived)](https://archive.is/ChqYX), I _flipped the fuck out_, and ended up doing more [stictly abstract philosophy-of-language work](https://www.lesswrong.com/posts/esRZaPXSHgWzyB2NL/where-to-draw-the-boundaries) [on](https://www.lesswrong.com/posts/edEXi4SpkXfvaX42j/schelling-categories-and-simple-membership-tests) [the](https://www.lesswrong.com/posts/fmA2GJwZzYtkrAKYJ/algorithms-of-deception) [robot](https://www.lesswrong.com/posts/4hLcbXaqudM9wSeor/philosophy-in-the-darkest-timeline-basics-of-the-evolution)-[cult](https://www.lesswrong.com/posts/YptSN8riyXJjJ8Qp8/maybe-lying-can-t-exist) [blog](https://www.lesswrong.com/posts/onwgTH6n8wxRSo2BJ/unnatural-categories-are-optimized-for-deception).
+
+An important thing to appreciate is that the philosophical point I was trying to make has _absolutely nothing to do with gender_. In 2008, Yudkowsky had explained that _for all_ nouns N, you can't define _N_ any way you want, because _useful_ definitions need to "carve reality at the joints."
+
+It [_follows logically_](https://www.lesswrong.com/posts/WQFioaudEH8R7fyhm/local-validity-as-a-key-to-sanity-and-civilization) that, in particular, if _N_ := "woman", you can't define the word _woman_ any way you want. Maybe trans women _are_ women! But if so—that is, if you want people to agree to that word usage—you need to be able to _argue_ for why it makes sense on the empirical merits; you can't just _define_ it to be true, and this is a _general_ principle of how language works, not something I made up on the spot in order to stigmatize trans people.
+
+In 2008, the general philosophy of language lesson was _not politically controversial_. If, in 2018–present, it _is_ politically controversial (specifically because of the fear that someone will try to apply it with _N_ := "woman"), that's a _problem_ for our whole systematically-correct-reasoning project! What counts as good philosophy—or even good philosophy _pedagogy_—shouldn't depend on the current year!