The necessary condition for success in anything

I’m most certain Michael Phelps got his 20 + gold medals by doing this. Keith Richards became good at playing guitar because of this. Dostoevsky and Tolstoy at writing. Steve Jobs and Elon Musk at building their businesses empires.

More average individuals too. They couldn’t have achieved success without this rule.

I did it to get into Cambridge and Harvard. To run my sub-3-hour marathon (yeah, I will forever be bragging about it, here is the story) I did it too.