-> If you really want to present an honest, rational argument _for your candidate_, in a political campaign, there is only one way to do it:
->
-> * _Before anyone hires you_, gather up all the evidence you can about the different candidates.
-> * Make a checklist which you, yourself, will use to decide which candidate seems best.
-> * Process the checklist.
-> * Go to the winning candidate.
-> * Offer to become their campaign manager.
-> * When they ask for campaign literature, print out your checklist.
->
-> Only in this way can you offer a _rational_ chain of argument, one whose bottom line was written flowing _forward_ from the lines above it. Whatever _actually_ decides your bottom line is the only thing you can _honestly_ write on the lines above.
+The title (note: "boundaries", plural) was a play off of ["Where to Draw the Boundary?"](https://www.lesswrong.com/posts/d5NyJ2Lf6N22AD9PB/where-to-draw-the-boundary) (note: "boundary", singular), a post from Yudkowsky's [original Sequence](https://www.lesswrong.com/s/SGB7Y5WERh4skwtnb) on the [37 ways in which words can be wrong](https://www.lesswrong.com/posts/FaJaCgqBKphrDzDSj/37-ways-that-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 [...] Or 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 the 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 depends on your values: if you don't care about predicting or controlling some particular variable, you have no reason to look for [similarity clusters](https://www.lesswrong.com/posts/jMTbQj9XB5ah2maup/similarity-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 in ℝ³, 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](https://en.wikipedia.org/wiki/Mutual_information) between the job title and properties of the job.
+
+(Jessica and Ben's [discussion of the job title example in relation to the _Wikipedia_ summary of Jean Baudrillard's _Simulacra and Simulation_ got published separately](http://benjaminrosshoffman.com/excerpts-from-a-larger-discussion-about-simulacra/) and ended up taking on a life of its own [in](http://benjaminrosshoffman.com/blame-games/) [future](http://benjaminrosshoffman.com/blatant-lies-best-kind/) [posts](http://benjaminrosshoffman.com/simulacra-subjectivity/), [including](https://www.lesswrong.com/posts/Z5wF8mdonsM2AuGgt/negative-feedback-and-simulacra) [a](https://www.lesswrong.com/posts/NiTW5uNtXTwBsFkd4/signalling-and-simulacra-level-3) [number](https://www.lesswrong.com/posts/tF8z9HBoBn783Cirz/simulacrum-3-as-stag-hunt-strategy) [of](https://www.lesswrong.com/tag/simulacrum-levels) [posts](https://thezvi.wordpress.com/2020/05/03/on-negative-feedback-and-simulacra/) [by](https://thezvi.wordpress.com/2020/06/15/simulacra-and-covid-19/) [other](https://thezvi.wordpress.com/2020/08/03/unifying-the-simulacra-definitions/) [authors](https://thezvi.wordpress.com/2020/09/07/the-four-children-of-the-seder-as-the-simulacra-levels/).)
+
+Sarah asked if the math wasn't a bit overkill: were the calculations really necessary to make the basic point that good definitions should be about classifying the world, rather than about what's pleasant or politically expedient to say?
+
+I thought the math was important as an appeal to principle—and [as intimidation](https://slatestarcodex.com/2014/08/10/getting-eulered/). (As it was written, [_the tenth virtue is precision!_](http://yudkowsky.net/rational/virtues/) Even if you cannot do the math, knowing that the math exists tells you that the dance step is precise and has no room in it for your whims.)
+
+"... Boundaries?" explains all this in the form of discourse with a hypothetical interlocutor arguing for the I-can-define-a-word-any-way-I-want position. In the hypothetical interlocutor's parts, I wove in verbatim quotes (without attribution) from Alexander ("an alternative categorization system is not an error, and borders are not objectively true or false") and Yudkowsky ("You're not standing in defense of truth if you insist on a word, brought explicitly into question, being used with some particular meaning"; "Using language in a way _you_ dislike is not lying. The propositions you claim false [...] is not what the [...] is meant to convey, and this is known to everyone involved; it is not a secret") and Bensinger ("doesn't unambiguously refer to the thing you're trying to point at").
+
+My thinking here was that the posse's previous email campaigns had been doomed to failure by being too closely linked to the politically contentious object-level topic, which reputable people had strong incentives not to touch with a ten-meter pole. So if I wrote this post _just_ explaining what was wrong with the claims Yudkowsky and Alexander had made about the philosophy of language, with perfectly innocent examples about dolphins and job titles, that would remove the political barrier to Yudkowsky correcting the philosophy of language error. If someone with a threatening social-justicey aura were to say, "Wait, doesn't this contradict what you said about trans people earlier?", the reputable people could stonewall them. (Stonewall _them_ and not _me_!)
+
+Another reason someone might be reluctant to correct mistakes when pointed out is the fear that such a policy could be abused by motivated nitpickers. It would be pretty annoying to be obligated to churn out an endless stream of trivial corrections by someone motivated to comb through your entire portfolio and point out every little thing you did imperfectly, ever.
+
+I wondered if maybe, in Scott or Eliezer's mental universe, I was a blameworthy (or pitiably mentally ill) nitpicker for flipping out over a blog post from 2014 (!) and some Tweets (!!) from November. I, too, had probably said things that were wrong _five years ago_.
+
+But I thought I had made a pretty convincing case that a lot of people were making a correctable and important rationality mistake, such that the cost of a correction (about the philosophy of language specifically, not any possible implications for gender politics) would be justified here. As Ben pointed out, if someone had put this much effort into pointing out an error _I_ had made four months or five years ago and making careful arguments for why it was important to get the right answer, I probably _would_ put some serious thought into it.
+
+I could see a case that it was unfair of me to include political subtext and then only expect people to engage with the politically clean text, but if we weren't going to get into full-on gender-politics on _Less Wrong_ (which seemed like a bad idea), but gender politics _was_ motivating an epistemology error, I wasn't sure what else I was supposed to do. I was pretty constrained here!
+
+(I did regret having accidentally poisoned the well the previous month by impulsively sharing ["Blegg Mode"](/2018/Feb/blegg-mode/) [as a _Less Wrong_ linkpost](https://www.lesswrong.com/posts/GEJzPwY8JedcNX2qz/blegg-mode). "Blegg Mode" had originally been drafted as part of "... To Make Predictions" before getting spun off as a separate post. Frustrated in March at our failing email campaign, I thought it was politically "clean" enough to belatedly share, but it proved to be insufficiently [deniably allegorical](/tag/deniably-allegorical/), as evidenced by the 60-plus-entry trainwreck of a comments section. It's plausible that some portion of the _Less Wrong_ audience would have been more receptive to "... Boundaries?" if they hadn't been alerted to the political context by the comments on the "Blegg Mode" linkpost.)
+
+On 13 April 2019, I pulled the trigger on publishing "... Boundaries?", and wrote to Yudkowsky again, a fourth time (!), asking if he could either publicly endorse the post, _or_ publicly comment on what he thought the post got right and what he thought it got wrong—and that if engaging on this level was too expensive for him in terms of [spoons](https://en.wikipedia.org/wiki/Spoon_theory), if there was any action I could take to somehow make it less expensive. The reason I thought this was important, I explained, was that if rationalists in [good standing](https://srconstantin.github.io/2018/12/24/contrite-strategies.html) find themselves in a persistent disagreement about rationality itself, that seemed like a major concern for [our common interest](https://www.lesswrong.com/posts/4PPE6D635iBcGPGRy/rationality-common-interest-of-many-causes), something we should be eager to definitively settle in public (or at least clarify the current state of the disagreement). In the absence of a rationality court of last resort, I feared the closest thing we had was an appeal to Eliezer Yudkowsky's personal judgment. Despite the context in which the dispute arose, _this wasn't a political issue_. The post I was asking for his comment on was _just_ about the [mathematical laws](https://www.lesswrong.com/posts/eY45uCCX7DdwJ4Jha/no-one-can-exempt-you-from-rationality-s-laws) governing how to talk about, _e.g._, dolphins. We had nothing to be afraid of here. (Subject: "movement to clarity; or, rationality court filing").