Re: How do you get to Carnegie Hall?
10,000 h of "deliberate practice" - refining, looking for weakness, addressing the weakness, raising the challenge as skills develop. Nothing really new there.
Talent accounts for only a small part of elite performance in anything - hard work accounts for a huge proportion of elite performance, and the combination of talent and hard work gives the best performance.
Whether it's a musician, artist, sportsman, or martial artist. There are a few people who are 4 or 5 or more standard deviations away from the mean, and who achieve mastery in significantly less than 10k hours (I coached one, once, for a little more than a year - it was amazing, but she did the hard work which was backed up by talent), but they are extremely rare. The rest of us need closer to the 10k hours.