I want to relate this to Richard Branson's family advice to Elon Musk sprinkled throughout a recent Google Hangout[1].

> I hope he can find some wonderful people to help him. He's got five children at home, all boys... he just, uh, he needs to... uh, yeah, I hope you can find lots of time. You just got to find lots of people to help you.

I can't imagine the kind of family life Elon Musk can have if he has five boys while running two companies. He advises young entrepreneurs to work 70-80 hour weeks as a clear no-brainer way to get ahead. Hearing the hesitation in Richard Branson's voice in the quote above says a lot about this I think.

[1]: http://www.youtube.com/watch?v=Vy9y_YSpYxA&feature=share&t=5...