The future isn’t pre-ordained. It is contested and contestable. Science fiction isn’t a literature that tells you what will happen tomorrow. It is a literature that tells you how to prevent the bad tomorrows and usher in the good ones. It is an active and activist literature, with an agenda and a point of view. As we hurtle through our century of rapid change and economic, ecological, and technological disruption, it’s precisely the literature we need.
— Cory Doctorow, A Vocabulary for Speaking About the Future