-Somewhat apologetically, I replied that the distinction between truthfully, publicly criticizing group identities and _named individuals_ still seemed very significant to me? I would be way more comfortable writing [a scathing blog post about the behavior of "rationalists"](/2017/Jan/im-sick-of-being-lied-to/), than about a specific person not adhering to good discourse norms in an email conversation that they had good reason to expect to be private. I thought I was consistent about this: contrast my writing to the way that some anti-trans writers name-and-shame particular individuals. (The closest I had come was [mentioning Danielle Muscato as someone who doesn't pass](/2018/Dec/untitled-metablogging-26-december-2018/#photo-of-danielle-muscato)—and even there, I admitted it was "unclassy" and done in desperation of other ways to make the point having failed.) I had to acknowledge that criticism of non-exclusively-androphilic trans women in general _implied_ criticism of Jessica, and criticism of "rationalists" in general _implied_ criticism of Yudkowsky and Alexander and me, but the extra inferential step and "fog of probability" seemed useful for making the speech act less of an attack? Was I wrong?
+Somewhat apologetically, I replied that the distinction between truthfully, publicly criticizing group identities and _named individuals_ still seemed very significant to me?—and that avoiding leaking info from private conversations seemed like an important obligation, too. I would be way more comfortable writing [a scathing blog post about the behavior of "rationalists"](/2017/Jan/im-sick-of-being-lied-to/), than about a specific person not adhering to good discourse norms in an email conversation that they had good reason to expect to be private. I thought I was consistent about this: contrast my writing to the way that some anti-trans writers name-and-shame particular individuals. (The closest I had come was [mentioning Danielle Muscato as someone who doesn't pass](/2018/Dec/untitled-metablogging-26-december-2018/#photo-of-danielle-muscato)—and even there, I admitted it was "unclassy" and done in desperation of other ways to make the point having failed.) I had to acknowledge that criticism of non-exclusively-androphilic trans women in general _implied_ criticism of Jessica, and criticism of "rationalists" in general _implied_ criticism of Yudkowsky and Alexander and me, but the extra inferential step and "fog of probability" seemed useful for making the speech act less of an attack? Was I wrong?
+
+Michael said this was importantly backwards: less precise targeting is more violent. If someone said, "Michael Vassar is a terrible person", he would try to be curious, but if they don't have an argument, he would tend to worry more "for" them and less "about" them, whereas if someone said, "The Jews are terrible people", he saw that as a more serious threat to his safety. (And rationalists and trans women are exactly the sort of people that get targeted by the same people who target Jews.)
+
+-----
+
+Polishing the advanced categories argument from earlier email drafts into a solid _Less Wrong_ post didn't take that long: by 6 April, I had an almost-complete draft of the new post, ["Where to Draw the Boundaries?"](https://www.lesswrong.com/posts/esRZaPXSHgWzyB2NL/where-to-draw-the-boundaries), that I was pretty happy with.
+
+The title (note: "boundaries", plural) was a play off of ["Where to the Draw the Boundary?"](https://www.lesswrong.com/posts/d5NyJ2Lf6N22AD9PB/where-to-draw-the-boundary) (note: "boundary", singular), a post from Yudkowsky's original Sequence on the ways in which words can be wrong. In "... Boundary?", Yudkowsky asserts (without argument, as something that all educated people already know) that dolphins don't form a natural category with fish ("Once upon a time it was thought that the word 'fish' included dolphins [...] you could stop playing nitwit games and admit that dolphins don't belong on the fish list"). But Alexander's ["... Not Man for the Categories"](https://slatestarcodex.com/2014/11/21/the-categories-were-made-for-man-not-man-for-the-categories/) directly contradicts this, asserting that there's nothing wrong with with biblical Hebrew word _dagim_ encompassing both fish and cetaceans (dolphins and whales). So who's right, Yudkowsky (2008) or Alexander (2014)? Is there a problem with dolphins being "fish", or not?
+
+In "... Boundaries?", I unify the two positions and explain how both Yudkowsky and Alexander have a point: in high-dimensional configuration space, there's a cluster of finned water-dwelling animals in the subspace of the dimensions along which finned water-dwelling animals are similar to each other, and a cluster of mammals in the subspace of the dimensions along which mammals are similar to each other, and dolphins belong to _both_ of them. _Which_ subspace you pay attention to can legitimately depend on your values: if you don't care about predicting or controlling some particular variable, you have no reason to look for clusters along that dimension.
+
+But _given_ a subspace of interest, the _technical_ criterion of drawing category boundaries around [regions of high density in configuration space](https://www.lesswrong.com/posts/yLcuygFfMfrfK8KjF/mutual-information-and-density-in-thingspace) still applies. There is Law governing which uses of communication signals transmit which information, and the Law can't be brushed off with, "whatever, it's a pragmatic choice, just be nice." I demonstrate the Law with a couple of simple mathematical examples: if you redefine a codeword that originally pointed to one cluster, to also include another, that changes the quantitative predictions you make about an unobserved coordinate given the codeword; if an employer starts giving the title "Vice President" to line workers, that decreases the mutual information between the job title and properties of the job.