Tim McGraw

I mean, there's a little bit that gets out, but for the most part, the thing that makes us work, and makes our family successful, and our life successful, is when we walk home and we walk into our doors of our house, all that other stuff is left outside. It's not a factor.

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.