The first on-screen adaptation of Octavia E. Butler's work should be cause for celebration. A titan of science fiction and the first writer in the genre to receive a MacArthur Fellowship, Butler conjured up all-too prescient dystopias (see: Parable of the Sower), centuries-spanning sci-fi epics (see: the Patternist series), and brand-new takes on vampire legends (see: Fledgling). Her work has been adapted into graphic novels and an opera, but never into TV or film. That all changes with FX's...