Everyone, red state, blue state, everyone supports space exploration.

I just want to remind us all there are billions of people in the world who are deeply religious, who get enriched by the wonderful sense of community by their religion. But these same people do not embrace the extraordinary view that the Earth is somehow only 6,000 years old.

By the way, most of the light that comes from the sun is green.

You stop planetary exploration, those people who do that extraordinary work are going to have to go do something else.

But investment in space stimulates society, it stimulates it economically, it stimulates it intellectually, and it gives us all passion.

We should educate more women and girls. Because that is the surest route to controllably, manageably reducing the human population. Educated women have fewer kids. And the kids they do have are better cared for and are more successful. As I like to say, it's not one thing that we need to focus on. It's everything all at once.

I tell personal stories associated with aspects of the theory, and I hope they are interesting and compelling. I don't feel you're going to change a grownup's mind in one reading. People have to be exposed to scientific ideas over and over again for years. It's also not a textbook.