That's weird. The authors are conflating "expert" with "success" and does not adequately distinguish the two terms. Further, it's not merely 10,000 hours of "p

That's weird. The authors are conflating "expert" with "success" and does not adequately distinguish the two terms. Further, it's not merely 10,000 hours of "practice". It is 10,000 hours of deliberate practice. Your mind has to be on the practice as you are practicing. If you're simply going through the motions, and your mind is checked out, you're not actually getting anything out of it. And yes, I know "10,000" is a nice round number. Five to seven years, two to three hours of intense, deliberate practice a day is about right.