master

By now IΓÇÖm sure youΓÇÖve heard of the 10,000-hour rule. If not, allow me to introduce the idea that it takes at least 10,000 hours of practice or devoted study to achieve mastery level at any given activity. Whether athlete, musician, computer wizard, designer, artist, master criminal, (fill in the blank) the magic number seems to be 10,000 hours to be considered world class.