[WilliamLP]

> I don't know exactly how his experiment would turn out.

I'm sure there would be correlation, but I suspect that it would be very far from perfect, possibly because of talent or inadvertently (or deliberately) discovering better and more effective ways to practice.

I'm reminded me of when I was a kid and played chess with a friend a lot. At first I could beat him and we played about the same amount but suddenly he inexplicably got far better than me. It bugged the hell out of me:)

So I think the result of Adams' "lesson" would actually be to teach people that they have strengths and weaknesses, and practice helps a lot, but it will (rather quickly) get swamped by talent in any realistic endeavor. And results might also be strongly affected by effective coaching or acquiring specific knowledge to make those hours of practice dramatically more effective.