Whether it's the experiments on 'MythBusters' or my earlier work in special effects for movies, I've regularly had to do things that were never done before, from designing complex motion-control rigs to figuring out how to animate chocolate.
I am incrementally a pessimist, but I see the international debate that Edward Snowden has engendered, and I think this is exactly where the discussion should be. So, I would say I'm more optimistic than pessimistic.
Audiences of critical thinkers are my favorite kinds of audiences. There are jokes I tell in the show that don't get laughs unless I am in front of an audience of critical thinkers. Put me in front of a crowd of science teachers or astronauts! The guileless aren't our audience - it's the critical thinkers we love.
The main trend with the theme episodes is that anywhere there is a misconception about the way the physical world works, we're finding fertile material. Whether it's in a phrase like "going over like a lead balloon" or "a needle in a haystack," or tackling movie myths or even a genre, like MacGyver or James Bond, we're finding that all these things can lead to people believing the world works in a certain way. It might not be correct, but we can test out if it's true.
These are people from everywhere, from Lawrence Livermore and JPL and Sandia National Labs, the FBI, all over the place, real scientists who see what we're doing, and they consistently thank us. "I agree your results aren't always right," they'll say, "but your methods are clearly showing that science is a re-creative process, and it's an interesting process because it's messy, and no other shows show that."