The thing about working on a TV show is that it becomes, very quickly, all consuming.

When J.J. [Abrams] called Lisa [Joy] and myself, he pitched us this idea of, what if we turn the structure around and started with the hosts. For us, that gave us a way to play with everything that we're interested in, all at once. It's the ultimate playground for us because we deal with questions about artificial intelligence, which is something I've long been fascinated by, but also human intelligence, or the lack thereof, human behavior, and interactive, immersive storytelling.

I've worked in the movie business for many, many years, where you have lots of days and lots of money. It's really mainly about time. We always try to conceive all of our action from a place of, "What can we shoot that looks fantastic?," rather than trying to do the kinds of thing that you would be able to accomplish in a movie.

One of the things that's really fun to tap in with television right now is this sort of explosion, the peak TV moment that we're in, people are exploring different modes of storytelling here. But one of the exciting things here is being able to commit upfront to a big, big, big story.

Typically with HBO shows, the ninth episode often winds up being a big one and when lots of exciting stuff happens. And then the tenth one is the more placid, character-based one.

TV is, as I'm discovering now, a marathon. You have to keep going and going and going.

Because he's the hero Gotham deserves, but not the one it needs right now. So we'll hunt him. Because he can take it. Because he's not our hero. He's a silent guardian, a watchful protector. A dark knight.