People developed planes first and then took care of flight safety. If people were focused on safety first, no one would ever have built a plane.

AI systems will enable doctors to diagnose diseases and treat people better, so blocking that progress is probably one of the worst things you can do for making the world better.

I don't want to be in a situation where I have to leave some other commitment or worse I am rude and someone else has to support my stuff. I stopped coding for Facebook a while ago.

Look at the way celebrities and politicians are using Facebook already. When Ashton Kutcher posts a video, he gets hundreds of pieces of feedback. Maybe he doesn't have time to read them all or respond to them all, but he's getting good feedback and getting a good sense of how people are thinking about that and maybe can respond to some of it.

The ability to share whole scenes form our lives will be a valuable thing over time.

I look at Google and think they have a strong academic culture. Elegant solutions to complex problems.

So many businesses get worried about looking like they might make a mistake, they become afraid to take any risk.