There is a theory in the psychology of human performance that, in the simplest terms, states that anyone who wishes to become exceptional at any given activity must dedicate 10 years of rigorous and designed practice to the mastery of the activity before they will approach a truly exceptional level of performance.
The bulk of the research has been done by one of my friends at Florida State University by the name of Anders Ericsson.
If you are interested in exceptional human performance as I am you may want to read his research.