If GM had kept up with technology like the computer industry has, we would all be driving $25 cars that got 1,000 MPG.

Almost every way we make electricity today, except for the emerging renewables and nuclear, puts out CO2. And so, what we're going to have to do at a global scale, is create a new system. And so, we need energy miracles.

Drones overall will be more impactful than I think people recognize, in positive ways to help society.

If you go back to 1800, everybody was poor. I mean everybody. The Industrial Revolution kicked in, and a lot of countries benefited, but by no means everyone.

The future of Windows is to let the computer see, listen and even learn.

This social-networking thing takes you to crazy places.