[mkramlich]

He's 26. He went straight from Harvard to Facebook. He still effectively controls Facebook. And he's a billionaire. I don't think he really can take a risk, in the sense that a normal person would think of a risk. As long as he doesn't do something blatantly stupid like run in front of a bus, he's probably set for the rest of his life. Instagram deal not approved, or approved but doesn't "work out"? Shrug. Still a billionaire. And I'm sure he's taken a lot off the table already so even if Facebook's value plummets, he should still be gold.

[staunch]

You think he doesn't have much to lose because at the end of the day he's still a billionaire. I doubt he feels like that. He's got an opportunity to succeed in ways most humans never do. You could argue that he's got more to lose than most, not less.