alt Hacker NewsNo, 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...".
But now we have an authority figure saying 30-70, so I'll trust that over your 15-50. And yes I know why you didn't cite the 30-70, its because you disagree with it. You shouldn't say others use biased examples and then say you believe it could be as low as 15% without anything to back that up.