Came here to post that link. One of the best TED talks ever!
Well I beat you to it :-P is your username inspired by Marcus Aurelius? (I'm almost done with Meditations and it's great.)
Right! Love the presence of emperors' names.
Haha, I wanted to post that link too ;)
Especially the "Fake it till you make it" - principle is interesting
Several years ago one of the universities (University of Maryland College Park) had an almost official motto: "Act like you know". It does work, surprisingly, to a substantial degree.