10k hours rule to master anything. Could I switch career when I am 43?

Throughout his book “M. Outliers: The Story of Success.”, Gladwell repeatedly refers to the “10 000-hour rule,” asserting that the key to achieving true expertise in any skill is simply a matter of practicing. It could be the greatest practice myth. My american boss founded my company in Viet Nam when he was 55. I admire him a lot. Nonetheless, […]