Is it ten thousand hours or twenty thousand hours to mastery? The answer is that it doesn't matter. There is no end zone. To think of a number is to live in a conditional future. We're simply talking about a lot of hours - that to get where we want to go isn't about brilliance, but continual effort. It means it's all within reach - for all of us, provided we have the constitution and humbleness to be patient and the fortitude to put in the work.