10,000 Hours

I listened to a radio interview recently with an author whose book explored mastery of the arts. The details are vague but one value he proposed was 10,000 hours of time spent doing an activity for mastery.

It got me thinking what I have done for 10,000 hours cumulatively.

10,000 Hour Club

1) Sleep



I'll add to the list when needed. I don't count things like breathing and hearing.