Earlier quoted context omitted.
Some of the stuff on Gusev's substack is pretty startling, and I highly recommend it. Thank you for taking the time to comment here!
> > twin studies and they have taken in serious beating in the past decade, especially in light of GWAS. Here's a twin study from 2015, newer than the books (Clean Slate etc) and papers you (David) mentioned. "Thinking positively: The genetics of high intelligence" https://pmc.ncbi.nlm.nih.gov/articles/PMC4286575/ Figure 3 indicates that intelligence is pretty strongly inherited, and they arrive at 0.44. Now you're s…
A few posts ago you were alluding to heritability in the 0.7-0.8 range, as a reason to dismiss the writings of Einstein, Newton, Descartes and Grothendieck.
Now you're at 0.44. If you discount for a mild EEA violation correction, you'd easily get to 0.3 or below — a figure which I personally find believable.
Just FYI, I don't belong to any "camp". These aren't camps but techniques and models. Intra-family GWAS provide underestimated lower bounds, twin studies provide wildly overestimated upper bounds. I don't care about the exact value, as long at it doesn't serve as a distraction from the (much more interesting!) story of how one can develop one's ability for mathematics.
In any case, IQ is a pretty boring construct, especially on the higher end where it's clearly uncalibrated. And it's a deep misunderstanding of mathematics to overestimate the role of "computational ability / short term memory / whatever" vs the particular psychological attitude and mental actions that are key to becoming better at math.
Now that the smoke screen has evaporated, can we please return to the main topic?