Malcolm Gladwell estimates it takes 10,000 hours of deliberate practice to be world class at a skill. 

But a new study destroys that rule.

In any case, we’ve estimated that with regular practice, rehearsals, competitions and school orchestra, the girls have at least 5,000 of deliberate practice under their belt. 

In nearly nine years of playing, the girls have not once said they want to quit. I attribute that to the fact that they only play violin – they do not do any other extracurriculars. The upsides of “being good” at something are: self-confidence, self-discipline and optimism!