# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2012-05-21 16:56:10 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/204616585808314368) RT @boltcity: It requires 10,000 hrs of good practice to become an expert at something. If you live to 80, you have 700,800 hrs to work ...