We might, on close examination, find that pro golfers have extraordinary endowments on attributes subtler than sheer speed or strength. Stuff like depth percep

We might, on close examination, find that pro golfers have extraordinary endowments on attributes subtler than sheer speed or strength. Stuff like depth perception, coordination of full-body motions, balance, maybe some cognitive attributes like executive control of focus, etc. As others have noted, the effort is in part a test of people's ability to enhance these endowments. I _think_ most people putting in 10,000 hours got feedback that their basic endowments give them some advantage. I suspect that something like that will operate here. If at some point Dan hits diminishing returns, and can't punch through by varying his approach and allowing for natural human slumps, that may be a signal that he lacks the physical tools to go all the way. Even then that isn't a waste of time, he'll have learned a lot about focus, and about detecting where his natural advantages do lie. That has to inform the search for his real calling. One way or the other, it'll be interesting.