A year or two ago, I saw the much-touted science fiction film Interstellar, and although the plot wasn't any good, one early scene was quite amusing. For various reasons, the American government of the future claimed that our Moon Landings of the late 1960s had been faked, a trick aimed at winning the Cold War by bankrupting
Russia into fruitless space efforts of its own. This inversion of historical reality was accepted as true by nearly everyone, and those few people who claimed that Neil Armstrong had indeed set foot on the Moon were universally ridiculed as "crazy conspiracy theorists." This seems a realistic portrayal of human nature to me.=
Obviously, a large fraction of everything described by our government leaders or presented in the pages of our most respectable newspapers—from the 9/11 attacks to the most insignificant local case of petty urban corruption—could objectively be categorized as a "conspiracy theory" but such words are never applied. Instead, use of that highly loaded phrase is reserved for those theories, whether plausible or fanciful, that do not possess the endorsement stamp of establishmentarian approval.