+It would be hard to overstate how much of an impact this post had on me. I've previously linked it on this blog eight times. In June 2008, half a year before it was published, I encountered the [2004 mailing list post](http://lists.extropy.org/pipermail/extropy-chat/2004-September/008924.html) that was its predecessor. (The fact that I was trawling through old mailing list archives searching for content by the Great Teacher that I hadn't already read, tells you something about what a fanboy I am.) I immediately wrote to a friend: "[...] I cannot adequately talk about my feelings. Am I shocked, liberated, relieved, scared, angry, amused?"
+
+The argument goes: it might be easy to _imagine_ changing sex and refer to the idea in a short English sentence, but the real physical world has implementation details, and the implementation details aren't filled in by the short English sentence. The human body, including the brain, is an enormously complex integrated organism; there's no [plug-and-play](https://en.wikipedia.org/wiki/Plug_and_play) architecture by which you can just swap your brain into a new body and have everything work without re-mapping the connections in your motor cortex. And even that's not _really_ a sex change, as far as the whole integrated system is concerned—
+
+> Remapping the connections from the remapped somatic areas to the pleasure center will ... give you a vagina-shaped penis, more or less. That doesn't make you a woman. You'd still be attracted to girls, and no, that would not make you a lesbian; it would make you a normal, masculine man wearing a female body like a suit of clothing.
+
+But from the standpoint of my secret erotic fantasy, this is actually a _great_ outcome.
+
+[...]
+
+> If I fell asleep and woke up as a true woman—not in body, but in brain—I don't think I'd call her "me". The change is too sharp, if it happens all at once.
+
+In the comments, [I wrote](https://www.greaterwrong.com/posts/QZs4vkC7cbyjL9XA9/changing-emotions/comment/4pttT7gQYLpfqCsNd)—
+
+> Is it cheating if you deliberately define your personal identity such that the answer is _No_?
+
+(To which I now realize the correct answer is: Yes, it's fucking cheating! The map is not the territory! You can't change the current _referent_ of "personal identity" with the semantic mind game of declaring that "personal identity" now refers to something else! How dumb do you think we are?! But more on this later.)
+
+[section: "50% of the ones with penises", moving to Berkeley, realized that my thing wasn't different; seemed like something that a systematically-correct-reasoning community would be interested in getting right (maybe the 30% of the ones with penises are actually women thing does fit here after all? (I was going to omit it)]