The overall argument that this book has made is that the analysis of race and gender in American SF can offer a way of reading the resistant and generative social possibilities of SF, and, in that argument’s mirror image, that SF can offer new ways of analysing the intersections of gender, race, and other identity structures in American culture. The semiotic instability and plurality of SF, I argued in the introduction, give SF the linguistic and material capabilities that “mundane” fiction (or the “mundane” reading thereof, at least) lacks for the incisive analysis of social and cultural biases. All of the chapters have endeavoured to demonstrate the tremendous possibilities SF offers for such pointed political critiques.