When the government tries to run innovation, sometimes it does it well and sometimes it doesn't. So setting up a situation where the market runs innovation, which is a cap-and-trade idea, may well have more flexibility.

The point is to explore whatever may be helpful for thinking, understanding, and acting responsibly over long periods of time.

Likewise, with solar, especially here in California, we're discovering that the 80 solar farm schemes that are going forward want to basically bulldoze 1,000 sq. mi. of southern California desert. Well, as an environmentalist, we would rather that didn't happen.

Once a new technology rolls over you, if you're not part of the steamroller, you're part of the road.

Humans have made a huge hole in nature in the last 10,000 years. [With de-extinction,] we have the ability now, and maybe the moral obligation, to repair some of the damage.

We are as gods and might as well get good at it.

Information wants to be free, because the cost of getting it out is getting lower and lower all the time.