Katey Sagal

I don't know, Y'know, I always wanted to be one of those cheerleader girls and I never was that, and I was never sort of cute and perky, and I always thought it was fun to be cute and perky, and those, I don't know what those girls are doing now.

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.