Paulo Coelho

When I'm dancing, I'm not thinking about anything. I am here. I am totally there. You know? And the feeling is a sensation of being away from myself. My soul dances with the angels, and my body dances with my wife.

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.