I’m a complete outsider looking in here, so here’s an outsider’s perspective (from someone in CS academia, currently in my early 30s).
I’ve never heard or seen anyone, in real life, ever have psychosis. I know of 0 cases. Yeah, I know that people don’t share such things, but I’ve heard of no rumors either.
By contrast, depression/anxiety seems common (especially among grad students) and I know of a couple of suicides. There was even a murder! But never psychosis; without the internet I wouldn’t even know it’s a real thing.
I don’t know what the official base rate is, but saying “4 cases is low” while referring to the group of people I’m familiar with (smart STEM types) is, from my point of view, absurd.
The rate you quote is high. There may be good explanations for this: maybe rationalists are more open about their psychosis when they get it. Maybe they are more gossipy so each case of psychosis becomes widely known. Maybe the community is easier to enter for people with pre-existing psychotic tendencies. Maybe it’s all the drugs some rationalists use.
But pretending the reported rate of psychosis is low seems counterproductive to me.
I think for the first objection about race and IQ I side with Cade. It is just true that Scott thinks what Cade said he thinks, even if that one link doesn’t prove it. As Cade said, he had other reporting to back it up. Truth is a defense against slander, and I don’t think anyone familiar with Scott’s stance can honestly claim slander here.
This is a weird hill to die on because Cade’s article was bad in other ways.