I have been spending the better part of my professional life trying to create self-driving cars. At Google, I am working with a world-class team of engineers to turn science fiction into reality.

Nobody phrases it this way, but I think that artificial intelligence is almost a humanities discipline. It's really an attempt to understand human intelligence and human cognition.

I can give my love of learning to other people.

I've always believed that human learning is the result of relatively simple rules combined with massive amounts of hardware and massive amounts of data.

As for my friends, I do have friends that aren't in the entertainment world at all but do interact on social media. I think that's an innate human thing now, to connect via those channels.

I think it's great when people accuse me, almost always falsely, of promoting conspiracy theories, because that shows how effective I am at messaging and how effectively I can use social media.

The important thing to remember with the Internet is that there are large companies that have an interest in controlling how information flows in it. They're very effective at lobbying Congress, and that pattern has locked down other communication media in the past. And it will happen again unless we do something about it.

Very much, string theory is simply a work in progress. What we are inching toward every day are predictions that within the realm of current technology we hope to test. It's not like we're working on a theory that is permanently beyond experiment. That would be philosophy.