Malcolm Gladwell's Outliers: The Story of Success is instructive. Historical and family circumstance, country of origin, birth year, and even birth month can be dispositive. Fascinating account about successful ice hockey players who ascend to the professional level in Canada. . .nearly all born in the early months. The recruiting system rewards the player's size and unwittingly perpetuates that reward. When you're 5 years old, your birth month matters in terms of size because a January born player has a year of maturity over his December born competitors. Gladwell explores the success of Bill Gates and the fortuitous circumstances surrounding his access to computers at a time when such access was unique to his particular lot in life. The author includes a ten thousand hour work element, in addition to those of luck, to the success formula. He attributes the success of The Beatles's American tour to the band's earlier stint in Germany, where they honed their craft over the course of "ten thousand hours." I wonder what Gladwell would say about 10,000 hours of arts & crafts? Certainly a prescription for disaster. The link below is a synopsis:
http://www.bloomberg.com/bw/stories/2008-11-19/gladwells-outliers-timing-is-almost-everything