Ah ok, yeah genetics science has came a long way 20 years so there it makes more sense to listen to modern stuff, but why the scare quotes? Do you have a problem with social scientists?
Edit: Looked him up and he disagrees with you. "My sense is that heritability of IQ is in the range of 30-70% with very high confidence.", you said "It's likely somewhere between 15%-50%". There is a massive difference between 30-70 and 15-50, 30-70 sounds much more reasonable and matches most studies on the subject I have seen.
No, I don't. But you've lost track of the thread, because I didn't claim he said 15-50%. There's a reason I cited him where I did: to point out how silly the 0.80 estimate the previous commenter's cite was in current context. His antecedent in this thread is "even hereditarians...".