How does Tim Ferriss achieve so much when he has all these inner doubts? - Mixergy

When I interviewed Tim Ferriss at a live Mixergy event in San Francisco, I expected to have to warm him up with some easy questions before asking him to talk about his inner doubts, but he just went for it…

http://mixergy.com/interviews/tim-ferriss-the-tim-ferriss-experiment/?awt_l=CWtzd