Asteroids have us in our sight. The dinosaurs didn't have a space program, so they're not here to talk about this problem. We are, and we have the power to do something about it. I don't want to be the embarrassment of the galaxy, to have had the power to deflect an asteroid, and then not, and end up going extinct.

It’s short-sighted to think ads won’t one day end up wherever humans are - even the moon.

Civilization just takes it as a given that the whole world was flooding. Then science came and you had geology and modern astrophysics, and time became well understood going back billions of years. So enlightened religious people, as a necessity, had to shed the magical elements of the Bible. A little known fact is that Thomas Jefferson did just that. There's something called the Jefferson Bible. It's not widely publicized because it sort of conflicts with certain people's ideas of what the founding fathers were.

Photography is a form of time travel.

People generally don't recognize how long it takes to conceive, publish, and write a book.

If there were biologists among the extremophiles organisms that live in extreme conditions, they would surely classify themselves as normal and any life that thrived in room temperature as an extremophile.

Only when you question does society move or advance at all.