Rihanna

When you realize who you live for, and who's important to please, a lot of people will actually start living. I am never going to get caught up in that. I'm gonna look back on my life and say that I enjoyed it - and I lived it for me.

By irreducibly complex I mean a single system composed of several well-matched, interacting parts that contribute to the basic function, wherein the removal of any one of the parts causes the system to effectively cease functioning.

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.