With artificial intelligence, we are summoning the demon. In all those stories where there's the guy with the pentagram and the holy water, it's like, yeah, he's sure he can control the demon. Didn't work out.

I'm personally a moderate and a registered independent, so I'm not strongly Democratic or strongly Republican.

You want to have a future where you’re expecting things to be better, not one where you’re expecting things to be worse.

I think we should be very careful about artificial intelligence. If I had to guess at what our biggest existential threat is, it's probably that. So we need to be very careful...With artificial intelligence we're summoning the demon.

It is a mistake to hire huge numbers of people to get a complicated job done. Numbers will never compensate for talent in getting the right answer (two people who don't know something are no better than one), will tend to slow down progress, and will make the task incredibly expensive.

I’m nauseatingly pro-American. I would have come here from any country. The U.S. is where great things are possible.

There are some important differences between me and Tony Stark, like I have five kids, so I spend more time going to Disneyland than parties.