For centuries, magicians have intuitively taken advantage of the inner workings of our brains.

The school system is constructed to praise you if you get high grades. And if you get straight A's, you're the one that everyone puts forward, and they prognosticate that the straight-A person is the one most likely to succeed, because that's the way the school system is constructed and conceived.

I don't want to go back into space for military reasons, but the economic driver still remains. And so it's a matter of people understanding how that economic driver is revealed with healthy investments on the space frontier.

Without new economies, our old economies get our jobs taken from them because everyone else has figured out how to do it.

But my vote for Venus's most peculiar feature is the presence of craters that are all relatively young and uniformly distributed over its surface. This innocuous-sounding feature implicates a single planetwide catastrophe that reset the cratering clock... turning Venus's entire surface into the American automotive dream-a totally paved planet.

On some issues, I'm a staunch Conservative — like curtailing greenhouse gas emissions so that we can Conserve the environment.

You know, there's black holes and what - could there be wormholes? Could - might there be a multi-verse? These are all fascinating frontiers. What is the nature of dark matter and dark energy? And what was around before the universe? And do we have access to higher dimensions?