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.

The reason we should do a carbon tax is because it's the right thing to do. It's economics 101, elementary stuff.

When I was in college, I wanted to be involved in things that would change the world.

I do love email. Wherever possible I try to communicate asynchronously. I'm really good at email.

I came to the conclusion that we should aspire to increase the scope and scale of human consciousness in order to better understand what questions to ask. Really, the only thing that makes sense is to strive for greater collective enlightenment.

Trying to read our DNA is like trying to understand software code - with only 90% of the code riddled with errors. It's very difficult in that case to understand and predict what that software code is going to do.

We need to be super careful with AI. Potentially more dangerous than nukes.