(for Hugh Silverman)
A quick look at the Wikipedia entry for “science fiction”—though admittedly hardly a definitive source for such information—reveals approximately nineteen “subgenres” of science fiction, depending on how one counts. (The “subgenres” listed include: cyberpunk, time travel, alternate history, military sf, superhuman, apocalyptic and postapocalyptic, space opera, space western, social science fiction, and, under the category of “other subgenres,” climate fiction, anthropological sf, kaiju, biopunk, dieselpunk, steampunk, comic sf, feminist sf, science fiction opera, and science fiction poetry, though the relegation of some of these categories to “subgenre” is puzzling.) On the other hand, Worlds without End, a site dedicated to science fiction, fantasy, and horror, lists some thirty-eight subgenres. (Additional entries are alien invasion, artificial intelligence, colonization, dying Earth, utopia/dystopia, first contact, nanotechnology, robots/androids, singularity, slipstream, hard sf, soft sf, theological, virtual reality, near future, and mundane sf.) While the Wikipedia entry does include discussion of some sf descended from cyberpunk, it excludes some others; furthermore, it misses altogether the developments in near-future science fiction (e.g., recent William Gibson and the “mundane sf” movement, including Ted Chiang, Gwyneth Jones, Maureen McHugh, and Geoff Ryman; cf. Calvin 2014). While the Worlds without End site does include several of the ever-proliferating cyberpunk descendents, and while it does include the turn toward near-future sf, it significantly omits one of the most recent, even if quite ephemeral, fields: “post-punk sf.”