To mathematically estimate the IQs of these people, I used publicly available data such as scholastic achievement scores, ethnicity, GPA, wealth, self-reported IQ scores, and so on. Generally, I try to avoid using too many predictors as these variables will covary for other reasons besides intelligence, so continuous regression will result in mistakes.
Wordpress ate my comment when I tried to respond to your post estimating Scott Alexander's IQ, so I will just post my comment here:
This whole analysis is off, but the second paragraph is verifiably wrong. You take Scott’s self-deprecation too seriously.
He scored a 1540 on his SATs (V800; M740) and a 30 on his MCAT.
This method of estimating IQ–using high school SAT scores–will *always* yield an underestimate for intellectual outliers–especially intellectual outliers with assymetric cognitive profiles. Once you get past IQ 145, you have to incorporate qualitative evidence into the analysis. This may not seem as “objective” as regressing on high school test scores, but it’s necessary nonetheless.
Already went over this on Twitter but Yarvin's and Yud's estimates are ridiculously bloated. Yud's upper bound should be 143; I'd put his median estimate with Scott. Yarvin could go as low as 120 as I have explained. His writing is worse than Scott and Yud's as well so it would make sense. https://twitter.com/BronskiJoseph/status/1639665822023950336?s=20
Kanye West: 116
Curtis Yarvin: 120
Scott Alexander: 125
Eliezer Yudkowsky: 125
Magnus Carlsen: 146
i'll take the under on Aella, Kanye, Magnus and Yarvin. I'll take the over on Yud, Light, and probably Scott.