QUOTE : Libertarianism used to have a robust left wing as well. Both disliked government. Both were driven by a fantastically nostalgic conviction that a country of three hundred million people at the turn of the twenty-first century could and should revert to something like its nineteenth-century self. Both had a familiar American magical-thinking fetish for gold—to return to gold as the foundation of U.S. currency because, they think, only gold is real. However, as the post-Reagan Republican mother ship maintained extreme and accelerating antigovernment fervor—acquiring escape velocity during the 2000s, leaving Earth orbit in the 2010s—libertarianism became a right-wing movement. (Also helpful was the fact that extreme economic libertarians included extremely rich people like the Koch brothers who could finance its spread.) Most Republicans are very selective, cherry-picking libertarians: let business do whatever it wants, but don’t spoil poor people with government handouts; let individuals have gun arsenals but not abortions or recreational drugs or marriage with whomever they wish; and don’t mention Ayn Rand’s atheism. It’s a political movement whose most widely read and influential texts are fiction. “I grew up reading Ayn Rand,” Speaker of the House Paul Ryan has said, “and it taught me quite a bit about who I am and what my value systems are, and what my beliefs are.