With the caveat that Mike Arrington is not an objective third party as regards Jason these days, I recall him mentioning that Calacanis was regularly taking modafinil so as to not need sleep. c.f. http://techcrunch.com/2010/11/03/at-my-wits-end-jason-calaca...

I realize this may result in "I don't get tired" but for my two cents, chemical augmentation isn't really the same thing.

Or maybe that's a more accurate description of Olympic athletes than I'd like to admit.