Once we start believing that the apocalypse is coming, the amygdala goes on high alert, filtering out most anything that says otherwise.

Gossip, in its earlier forms, contained information that was critical to survival because, in clans of 150, what happened to anyone had a direct impact on everyone.

If the government regulates against use of drones or stem cells or artificial intelligence, all that means is that the work and the research leave the borders of that country and go someplace else.

The Net is allowing us to turn ourselves into a giant, collective meta-intelligence. And this meta-intelligence continues to grow as more and more people come online.

Almost every officer is going to put their life on the line at some point in their career.

To seek advice is easy, easy-approach job. To find the truth by yourself, that is a little difficult, and you have to work hard continuously, and you will find it.

When I got out of college, I gave myself till I was 30 to invent a product. If I couldn't do it by then, I would just get a real job. And that fear - the fear of a real job - motivated me to be an entrepreneur.

Maybe if I found something I was really passionate about, which is entirely possible, I would make another documentary, but it's not a good career choice for anybody. I don't recommend it.