If we had the fundamental laws of nature tomorrow, we still wouldn't understand consciousness. We wouldn't even understand turbulence.

I would say it's a lot easier to develop a decoy system than to develop the intercontinental ballistic missile itself. I would think that any country that could develop the missile could develop quite a decoy system. It doesn't have to be terribly sophisticated.

It's very difficult to convince other countries that they shouldn't pursue nuclear weapons programs if we ourselves are actively developing a component of a strategic defense system.

Steven Weinberg Quotes