Nvidia’s extreme work culture stems from the chief executive himself, who lives and breathes his job and looks down on anyone who isn’t as committed. “I don’t actually know anybody who is incredibly successful who just approaches business like, ‘This is just business. This is what I do from 8 to 5, and I’m going home, and at 5:01, I’m shutting it down,’ ” Jensen has said.15 “I’ve never known anybody who is incredibly successful like that. You have to allow yourself to be obsessed with your work.”