Two of the most startlingly original science fiction writers of the past century, Samuel R. Delany and Octavia E. Butler, emerged in the 60s and 70s and created dystopian visions that resonate with us today with more depth and immediacy than the majority of their contemporaries. Both writers also happened to be African American. But why should this detail matter? Why indeed, asked Butler, in an equally relevant question, “is science fiction so white?” She went on to explore the question in a 1980 essay published in Transmission, not with a history of the genre, but with rebuttals to the reasons for excluding people like her.