Deadlines refine the mind. They remove variables like exotic materials and processes that take too long. The closer the deadline, the more likely you'll start thinking waaay outside the box.
From earliest times, humans - explorers and thinkers - have wanted to figure out the shape of their world. Forever, the way we've done that is through storytelling. It is difficult to let the truth get in the way of a good story.
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.
Back when I was a professional model-maker at Industrial Light & Magic, my specialty was hard-edged construction - spaceships, miniature sets, and architectural stuff. These objects were sometimes just 12 inches across yet needed enough detail to fill a movie screen.
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 had saved a few hundred photos of dodo skeletons into my 'Creative Projects' folder - it's a repository for my brain, everything that I could possibly be interested in. Any time I have an Internet connection, there's a sluice of stuff moving into there, everything from beautiful rings to cockpit photos.