+(Incidentally, it was also around this time that I snuck a copy of _Men Trapped in Men's Bodies_ into the [MIRI](https://intelligence.org/) office library, which was sometimes possible for community members to visit. It seemed like something Harry Potter-Evans-Verres would do—and ominously, I noticed, not like something Hermione Granger would do.)
+
+------
+
+If I had to pick a _date_ for my break with progressive morality, it would be 7 October 2017. Over the past couple days, I had been having a frustrating Messenger conversation with some guy, which I would [later describe as feeling like I was talking to an AI designed to maximize the number of trans people](/2018/Jan/dont-negotiate-with-terrorist-memeplexes/).
+
+Over the previous week and months, I had been frustrated with the _Zeitgeist_, but I was trying to not to be loud or obnoxious about it, because I wanted to be a good person and not hurt anyone's feelings and not lose any more friends. ("Helen" had rebuffed my last few requests to chat or hang out. "I don't fully endorse the silence," she had said, "just find talking vaguely aversive.")
+
+The conversation made it very clear to me that I could have no peace with the _Zeitgeist_. It wasn't the mere fact that some guy in my social circle was being dumb and gaslighty about it. It was that fact that his gaslighting was an unusually pure distillation of _socially normative_ behavior in Berkeley 2016. There were more copies of him than there were of me.
+
+It was a Huckleberry Finn moment for me: opposing this was worth losing friends, worth hurting feelings, and, actually, worth the other thing. I posted on Facebook in the morning and [on my real-name blog](http://zackmdavis.net/blog/2016/10/late-onset/) in the evening:
+
+> the moment of liberating clarity when you resolve the tension between being a good person and the requirement to pretend to be stupid by deciding not to be a good person anymore 💖
+
+Michael Vassar emailed me about it, and we ended up meeting once. (I had also emailed him back in August, when I had heard from Anna that he was also skeptical of the transgender movement (Subject: "I've heard of fake geek girls, but this is ridiculous").)
+
+------
+
+I wrote about my frustrations to Scott Alexander of _Slate Star Codex_ fame (Subject: "J. Michael Bailey did nothing wrong"). The immediate result of this is that he ended up including a link to one of Kay Brown's study summaries (and expressing surprise at the claim that non-androphilic trans woman have very high IQs) in his [November links post](https://slatestarcodex.com/2016/11/01/links-1116-site-unseen/), and he [got some pushback even for that](https://slatestarscratchpad.tumblr.com/post/152736458066/hey-scott-im-a-bit-of-a-fan-of-yours-and-i).
+
+------
+
+A trans woman named Sophia [commented on one of my real-name blog posts](http://zackmdavis.net/blog/2016/09/wicked-transcendence-ii/), thanking me for the recommendation of _Men Trapped in Men's Bodies_. "It strongly spoke to many of my experiences as a trans woman that I've been treating as unmentionable. (Especially among my many trans friends!)" she wrote. "I think I'm going to start treating them as mentionable."
+
+We struck up an email correspondence (Subject: "Re: [An Algorithmic Lucidity] Please moderate: 'Wicked Transcendence II'"). She had found my blog from the _Slate Star Codex_ blogroll. She had transitioned in July of the previous year at age 35, to universal support. (In Portland, which was perhaps uniquely good in this way.)
+
+I said I was happy for her—probably more so than the average person who says that—but that (despite living in Berkeley, which was perhaps uniquely in contention with Portland for being perhaps uniquely good in this way) there were showstopping contraindications to social transition in my case. It _really mattered_ what order you learn things in. Because the 2016 _Zeitgeist_ had the back of people who model themselves as women who were assigned male at birth (but not people who model themselves as men who love women and want to become what they love), if you _first_ realize, "Oh, I'm trans," and then sucessfully transition, and _then_ read Anne Lawrence, you can say, "Huh, seems plausible that my gender identity was caused by my autogynephilic sexuality rather than the other way around; weird," shrug, and continue living happily ever after. In contrast, I had [already been thinking of myself as autogynephilic (but not "trans") for ten years](/2017/Feb/a-beacon-through-the-darkness-or-getting-it-right-the-first-time/). Even in Portland or Berkeley, you still have to send that coming-out email, and I couldn't claim to have a "gender identity" with a straight face.
+
+She said she would recommend _Men Trapped in Men's Bodies_ on her Facebook wall. I said she was very brave—well, we already knew she was very brave because she _actually transitioned_—but, I suggested, maybe it would be better to wait until [October 11th](https://en.wikipedia.org/wiki/National_Coming_Out_Day) ([October 11th](http://zackmdavis.net/blog/2015/10/october-eleventh/))?
+
+As an afterthought to an explanation of why she thought successfully transitioning is more feasible than I seemed to believe, she suggested a folkloric anti-dysphoria exercise: look at women you see in public, and try to pick out which features /r/gendercritical would call out in order to confirm that she's obviously a man.
+
+I replied that "obviously a man" is unsophisticated. I had been thinking of gendering in terms of [naïve Bayes models](https://www.lesswrong.com/posts/gDWvLicHhcMfGmwaK/conditional-independence-and-naive-bayes): you observe some features, use those to assign (probabilities of) category membership, and then use category membership to make predictions about whatever other features you might care about but can't immediately observe. Sure, it's possible for an attempted clocking to be mistaken, and you can have third-gender categories such that AGP trans women aren't "men", but they're still not drawn from anything close to the same distribution as cis women.
+
+Sophia replied with an information-theoretic analysis of passing (which I would [later adapt into a guest post with her gracious permission](/2018/Oct/the-information-theory-of-passing/)). If the base rate of AGP transsexualism in Portland was 0.1%, someone would need log<sub>2</sub>(99.9%/0.1%) ≈ 9.96 ≈ 10 bits of evidence to clock her as trans. If the structure of one's face was 4 times more likely to be from a male than a female, that would only contribute 2 bits. Sophia was 5′7″, which is about where the female and male height distributions cross over, so she wasn't leaking any bits there. And so on—the prospect of passing in naturalistic settings is a different question from whether there exists evidence that a trans person is trans. There _is_ evidence—but as long as it's comfortably under 10 bits, it won't be a problem.
+
+I agreed that for most people in most everyday situations it probably didn't matter. _I_ cared because I was a computational philosophy of gender nerd, I said, [linking to a program I had written](https://github.com/zackmdavis/Persongen/blob/8fc03d3173/src/main.rs) to simulate sex classification based on personality, using data from [a paper by Weisberg _et al._ about sex differences in the correlated "facets" underlying the Big Five personality traits](http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3149680/). (For example, studies had shown that women and men didn't differ in Big Five Extraversion, but if you split "Extraversion" into "Enthusiasm" and "Assertiveness", there were small sex differences pointing in opposite directions, with men being more assertive.) My program generated random examples of women's and men's personality stats according to Weisberg _et al._'s data, and then tried to classify the "actual" sex of each example given only the personality stats—only reaching 63% accuracy, which was good news for androgyny fans like me.
+
+Sophia was impressed, but had some cutting methodological critiques. The paper had given [residual](https://en.wikipedia.org/wiki/Errors_and_residuals) statistics of each facet against the other—like the mean and standard deviation of Enthusiasm _minus_ Assertiveness—so I assumed you could randomly generate one facet, and then use the residual stats to get a "diff" from one to the other. Sophia pointed out that you can't actually use residuals for sampling like that, because the actual distribution of the residual was highly dependent on the first facet. Given an unusually high value for one facet, taking the overall residual stats as independent would imply that the other facet was equally likely to be higher or lower, which was absurd. Sophia built her own model in Excel using the correlation matrix from the paper, and found a classifier with 68% accuracy.
+
+------
+
+On the evening of 10 October 2016, I put up my Facebook post for Coming Out Day:
+
+> Happy Coming Out Day! I'm a male with mild gender dysphoria which is almost certainly causally related to my autogynephilic sexual/romantic orientation, which I am genuinely proud of! This has no particular implications for how other people should interact with me!
+>
+> I believe that late-onset gender dysphoria in males is almost certainly not an intersex condition. (Here "late-onset" is a term of art meant to distinguish people like me from those with early-onset gender dysphoria, which is characterized by lifelong feminine behavior and a predominantly androphilic sexual orientation. Anne Vitale writes about these as "Group Three" and "Group One" in "The Gender Variant Phenomenon": [http://www.avitale.com/developmentalreview.htm](http://www.avitale.com/developmentalreview.htm) ) I think it's important to not let the political struggle to secure people's rights to self-modification interfere with the pursuit of scientific knowledge, because having a realistic understanding of the psychological mechanisms underlying one's feelings is often useful in helping individuals make better decisions about their own lives in accordance with the actual costs and benefits of available interventions (rather than on the basis of some hypothesized innate identity). Even if the mechanisms turn out to not be what one thought they were—ultimately, people can stand what is true.
+>
+> Because we are already enduring it.