> Why do you say that? I can't think of many that don't lend itself to that. Programming? Math? Chess? Plumbing? Carpentry? Tax accountant? Table tennis? Nurse?

> Why do you say that? I can't think of many that don't lend itself to that. Programming? Math? Chess? Plumbing? Carpentry? Tax accountant? Table tennis? Nurse? Golf probably has the advantage that it is easier to measure or judge someone's performance than some of the things you mentioned. While practice certainly helps with all of them, I would think that it would be quite hard to objectively evaluate the skill of a mathematician or a plumber in comparison.