We are in a tech-heavy society, plunging headlong into an unknown future. Science fiction is what allows you to stand back and analyze the impact of that and put it in context of how it affects people.

We walk in dark places no others will enter. We stand on the bridge and no one may pass. We live for the One. We die for the One. -- the Ranger oath

In every other science fiction series, humans are at the top of the food chain. In the 'Babylon 5' universe, they're in the bottom third.

When it comes down to it, the reason that science fiction endures is that it is, at its core, an optimistic genre. What it says at the end of the day is that there is a tomorrow, we do go on, we don't extinguish ourselves and leave the planet to the cockroaches.

I've always been kind of a mutt creatively. I started off in journalism, and I've actually done more police and procedural shows than I've ever done science fiction shows. I was on 'Murder She Wrote,' I was on 'Walker, Texas Ranger,' I was on 'Jake and the Fat Man.'

In science fiction, we're always searching for new frontiers. We're drawn to the unknown.