David Byrne

The historical novelist has to consider what has actually happened, while the SF writer is dealing in possibilities, but they are both in the business of imagining a world unlike our own and yet connected to it.

Every movie goes through that U-shape where you start with 'Oh that's a great idea. I love it.' Everything's possible and then you face 'Oh, we can't do that, and that's impossible, and that's a bad choice.' You go the practicality of it. And then you come up to 'Great.' But that middle part is when you don't have results yet.