10,000 hours Forty years ago, in an article entitled American Scientist, Herbert Simon and William Chase drew one of the most famous conclusions from the study of expertise during a chess match: “We estimate, very roughly, that a master has spent perhaps 10,000 to 50,000 hours looking at chess positions…” But this statement has not Is there really any evidence behind it? According to Malcolm Gladwell in his book Outliers, the 10,000 hour rule is very true, along with other factors that lead to expertise in a particular field. Most people who don't believe in the 10,000 rule fail to consider the other factors that must accompany it for the rule to deliver on its promises.Cristiano Ronaldo, one of the best footballers in the world today is someone who can be accurately observed and compared to the 10,000 hour rule. Cristiano started playing football at the age of three. At age eight, he was signed to amateur team Andorinha Sporting. In one year he was the only player to play for Sporting's under-16s, under-17s, under-18s, B team and first team, all with...