“ First, it seems improbable that in the narrow area of expert performance we find that practice dominates, whereas in everything else, we find that genetic factors have an equally large (if not greater) effect on outcomes. (This latter bit — that genes matter in determining IQ, mental health, personality traits, aptitude, and others — is so well replicated so as to not be in serious dispute any longer.”

Now that’s a pretty huge claim, and I don’t think that linking Guardian articles backs up that claim as scientific consensus.

Neurons + culture (aka, practice) are essentially the biological solution to DNA being too slow. It’s not “improbable” that practice dominates here, in fact, I’d say that our genetics specifically evolved for practice to be more important there.