Interesting perspective on how people become outliers.

The 10,000 hour rule is a theory that states that it takes 10,000 hours to master a skill. According to aficionados of this rule the common factor of the amount of time we practice in a particular skill within any area of study which is about 90 minutes per day for 20 years of practice. […]

via Does It Really Take 10,000 hours? — Jay Colby