“There’s no going back”—the refrain of every libertarian the day after the day after a bad law goes into effect. Thought, political and otherwise, is reduced to the tiniest of time frames instead of decades and centuries. Change becomes impossible, excerpt in a forward march, where “forward” aligns with ever-relaxing restrictions that, once relaxed, can never be undone; whereas temporary “backward” setbacks can always be undone, usually quite quickly, even against popular majorities.