Hm...theoretically? The thing is, the broad zeitgeist of extremely profitable strategies changes over time. James Simons and Warren Buffett might as well be in

Hm...theoretically? The thing is, the broad zeitgeist of extremely profitable strategies changes over time. James Simons and Warren Buffett might as well be in different fields for how different their day to day work and peripheral market behavior were during their careers. That might be confounding, because on a long enough timeline all job functions become obsolete and have to change. Other than that though, sure. Unfortunately it would be really difficult to examine empirically, which is why I use a 20-30 year slice of time.