I wish we would stop repeating the &quot;10,000 hours rule&quot;. It was a good soundbite in (at least what I think was) a good book, Outliers, but rigorous analysis of the data doesn&#x27;t back it up. It&#x27;s like the &quot;drink 8 glasses of water a day&quot; rule - sounded good until someone realized there actually wasn&#x27;t evidence to back it up.<p>See <a href="http:&#x2F;&#x2F;www.smithsonianmag.com&#x2F;smart-news&#x2F;10000-hour-rule-not-real-180952410&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.smithsonianmag.com&#x2F;smart-news&#x2F;10000-hour-rule-not...</a>