The British bombed German cities [during World War II] to keep the workers awake at night. So instead of dropping one bomb, we sent a thousand planes and, yes, we took out the factory sometimes, but we also took out the city. It reached the point where we wanted more efficient ways to destroy a city. The result was nuclear weapons.

I think the personal and psychological aspects of war remain the same. War is about killing and dying. A man or woman stands at the post and there is a very real possibility of dying in the next five minutes. Whether he dies or not depends partly on him and partly on luck, and yet he must continue to function.

The United State has a net worth against which our debt is a joke ... we wrote in 2008 the United States is going to come out of this recession fast. The Europeans are going to fragment. The Chinese are going to be cremated. Why could we come out of it? Why has all economic theory been proven wrong? Because we're rich and we could afford it.

In a way, we can have a much easier discussion about the future of technology than we can about why a young man kills another man in a war.

When you're young and going to war, it's a genuinely exciting moment. You are going to risk yourself. On the battlefield, you are suddenly free. You realize: I'm here, I'm in it. Exaltation. Suddenly you're hit by another extraordinary feeling: my God, I can be killed. And: will I embarrass myself? It's like you're in a kaleidoscope and all of these extraordinary feelings are zipping by.

A research division develops marketing material for its deal makers. We have no policy position. If you have a policy position you can't possibly forecast.

By the 20th century, war ceased to be an encounter between two armies. It became an encounter between two societies, because a factory worker producing a gun or a bomb is as deadly as a pilot.