It is a rare thing when human events run ahead of science-fiction predictions. Usually, we’re years behind: According to George Orwell, we should have been living under the boot heel of a high-tech fascist panopticon state since the Reagan administration, while Philip K. Dick had cyborgs digging away as extraplanetary miners during the first Clinton term. But we are running well ahead of Star Trek: According to canonical sources, we were not supposed to encounter the Borg until sometime in the ’60s — the 2360s — but here is Melissa Harris-Perry of Tulane University and MSNBC, some 350 years or...