I'm not familiar with James Grosjean, nor am I a gambler, but I would guess that James became addicted to gambling, and then used his intellect and education to make money doing what he loved.
> I would guess that James became addicted to gambling, and then used his intellect and education to make money doing what he loved.
I'd be a little careful with terminology there. Gambling addiction can be a very serious problem, while a passion/love for gambling can be fine even if you're a losing player.
