Mid Future (2050-2100)

Five novels clustered in the 2050-2100 window — Blish's *A Case of Conscience*, Asimov's *The Gods Themselves*, Stephenson's *The Diamond Age*, Wilson's *Spin*, Di Filippo's *Ribofunk* — and the shared conceptual spine isn't technology. It's institutional legitimacy under pressure. Blish gives us a Jesuit whose Church can't metabolize an alien world that has ethics without God. Asimov's scientists discover a universe-threatening energy source and find that no existing body — academic, governmental, alien — is competent to govern the decision. Stephenson's neo-Victorians rebuild social structure through protocol precisely because the old ones dissolved. Wilson wraps the Earth in a membrane and watches every human planning horizon collapse at once. Di Filippo's biotech sprawl just routes around institutions entirely. David Brin, writing his afterword to *Earth*, nailed why this era is so treacherous to depict: fifty years is "just short enough a span to require a sense of familiarity, and yet far enough away to demand countless surprises." What the mid-future actually tests isn't whether we'll have the technology — it's whether any framework of authority will still be recognizable enough to say yes or no to it.