The 10,000-Hour Myth

Malcolm Gladwell popularized the idea that 10,000 hours of practice makes you an expert. The original researcher, Anders Ericsson, pushed back hard. His actual finding was that 10,000 hours of deliberate practice separated elite performers from the rest.

Someone who plays guitar casually for 10,000 hours will still sound mediocre. Someone with 3,000 hours of focused exercises targeting weaknesses will sound extraordinary. The quality of practice matters more than quantity. Hours alone are a terrible metric.