Or how I was proud to be the kind of guy who bought Julia Serano's _Whipping Girl: A Transsexual Woman on Sexism and the Scapegoating of Femininity_ when it was new in 2007, and [who would rather read from Evelyn Fox Keller's _Reflections on Gender and Science_ than watch Super Bowl XLII](http://zackmdavis.net/blog/2013/03/tradition/).
-Or how, at University, I tried to go by my [first-and-middle-initials](https://en.wikipedia.org/wiki/List_of_literary_initials) because I wanted a gender-neutral [byline](https://en.wikipedia.org/wiki/Byline), and I wanted what people called me in real life to be the same as my byline—even if, obviously, I didn't expect people to not-notice which sex I am in real life because _that would be crazy_.
+<a id="literary-initials"></a>Or how, at University, I tried to go by my [first-and-middle-initials](https://en.wikipedia.org/wiki/List_of_literary_initials) because I wanted a gender-neutral [byline](https://en.wikipedia.org/wiki/Byline), and I wanted what people called me in real life to be the same as my byline—even if, obviously, I didn't expect people to not-notice which sex I am in real life because _that would be crazy_.
(This attempted nickname change actually turned out to be a terrible idea that ended up causing me a huge amount of pointless identity-crisis psychological pain—my particular pair of real-life initials never really "felt like a name" even to me (as contrasted to something like "C.J." or "J.T.", which feel like a name on account of having a _J_ in it); I turned out to be incredibly uncomfortable with different people knowing me by different names, and didn't have the guts to nag everyone in my life to switch for something that didn't feel like a name even to me; _and_ the "gender-neutral byline" rationale almost certainly never held up in practice because my real-life first initial is a [high-Scrabble-score letter](https://en.wikipedia.org/wiki/Scrabble_letter_distributions#English) that begins one popular boy name and zero popular girl names. But it was the _principle!_)
A single-variable measurement like height is like a single coin: unless the coin is _very_ biased, one flip can't tell you much about the bias. But there are lots of things about people for which it's not that they can't be measured, but that the measurements require _more than one number_—which correspondingly offer more information about the distribution generating them.
-And knowledge about the distribution is genuinely informative. Occasionally you hear progressive-minded people dismiss and disdain simpleminded transphobes who believe that chromosomes determine sex, when actually, most people haven't been karyotyped and don't _know_ what chromosomes they have. (Um, with respect to some sense of the word "know" that doesn't care how unsurprised I was that my [23andMe](http://23andme.com/) results came back with a _Y_ and that I would have happily bet on this at extremely generous odds.)
+<a id="chromosomes"></a>And knowledge about the distribution is genuinely informative. Occasionally you hear progressive-minded people dismiss and disdain simpleminded transphobes who believe that chromosomes determine sex, when actually, most people haven't been karyotyped and don't _know_ what chromosomes they have. (Um, with respect to some sense of the word "know" that doesn't care how unsurprised I was that my [23andMe](http://23andme.com/) results came back with a _Y_ and that I would have happily bet on this at extremely generous odds.)
Certainly, I agree that almost no one interacts with sex chromosomes on a day-to-day basis; no one even knew that sex chromosomes _existed_ before 1905. [(Co-discovered by a woman!)](https://en.wikipedia.org/wiki/Nettie_Stevens) But the function of [intensional definitions](https://www.lesswrong.com/posts/HsznWM9A7NiuGsp28/extensions-and-intensions) in human natural language isn't to exhaustively [pinpoint](https://www.lesswrong.com/posts/3FoMuCLqZggTxoC3S/logical-pinpointing) a concept in the detail it would be implemented in an AI's executing code, but rather to provide a "treasure map" sufficient for a listener to pick out the corresponding concept in their own world-model: that's why [Diogenes exhibiting a plucked chicken in response to Plato's definition of a human as a "featherless biped"](https://www.lesswrong.com/posts/jMTbQj9XB5ah2maup/similarity-clusters) seems like a cheap "gotcha"—we all instantly know that's not what Plato meant. ["The challenge is figuring out which things are similar to each other—which things are clustered together—and sometimes, which things have a common cause."](https://www.lesswrong.com/posts/d5NyJ2Lf6N22AD9PB/where-to-draw-the-boundary) But sex chromosomes, and to a large extent specifically the [SRY gene](https://en.wikipedia.org/wiki/Testis-determining_factor) located on the Y chromosome, _are_ such a common cause—the root of the [causal graph](https://www.lesswrong.com/posts/hzuSDMx7pd2uxFc5w/causal-diagrams-and-causal-models) underlying all _other_ sex differences. A smart natural philosopher living _before_ 1905, knowing about all the various observed differences between women and men, might have guessed at the existence of some molecular mechanism of sex determination, and been _right_. By the "treasure map" standard, "XX is female; XY is male" is a pretty _well-performing_ definition—if you're looking for a [_simple_ membership test](https://www.lesswrong.com/posts/edEXi4SpkXfvaX42j/schelling-categories-and-simple-membership-tests) that's entangled with a lot of information about the many intricate ways in which females and males statistically differ.
projects / Ultimately_Untrue_Thought.git / blobdiff