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

The great problem with the future is that we die there. This is why it is so hard to take the future personally, especially the longer future, because that world is suffused with our absence.

Carbon tax has the advantage of basically being able to subsidize one set of activities that you want with another set of activities that you don't want. It's like a cigarette tax.

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

One advantage of a solar collector in space: It would be some kind of origami thing that would unfold and be relatively light because it doesn't have gravity to deal with.

[Wind energy] takes a very large footprint on the land, five to 10 times what you'd use for nuclear, and typically to get one gigawatt of electricity is on the order of 250 square miles of wind farm.

All buildings are predictions. All predictions are wrong.