These were saved consecutively in September 2017 and all involve the same topic: IQ, including Richard Feynman's supposedly only above-average score. I just wrote about spatial intelligence, which is not formally tested as often or as well at school, and it may be that Feynman hit a ceiling on that but did not top out on other subtests, depressing his overall score a bit. That would also make my scores look better than they should. That makes sense to me, as I always felt they were a little higher than what my personal experience would suggest. My numbers suggest I should almost never encounter people significantly smarter than myself, but I meet them all the time. I do look for them, but still.
You can get a deep dive on the subject of IQ here, especially if you follow the links.
Feynman, Schwinger, and Psychometrics. This is from Steve Hsu's Information Processing site, when he was still teaching physics at Oregon. He is now at Michigan State as an administrator of (checks DuckDuckGo) of research and graduate studies.
Scott Alexander trying to get people to calm down. Slate Star Codex usually does first-class work. Quote: "So I want to clarify: IQ is very useful and powerful for research purposes. It’s not nearly as interesting for you personally." Amen and amen.
A Polymath Physicist on Richard Feynman's "Low" IQ and Finding Another Einstein. Steve Hsu again. Some of the same information, but mostly different.
Flynn Flips: IQ Tests Do Matter. The "Flynn Effect" has been an uncomfortable array of data over the years for those who see genetics as the dominant driver of intelligence, as I do. It does go against conclusions we might draw from other research, but it must be accounted for if we want to understand what is really happening. Steve Sailer partly reconciled the two viewpoints over a decade ago. I probably should look around and see if there are any major changes over the last decade or so. I do know that BGI (that's Steve Hsu again) has begun to uncover specific SNPs associated with increased IQ - about 50, last I heard - and as predicted, they each seem to have a tiny effect. There is no collection of "you're really smart" genes out there. Last I heard.