But 2016 was also marked—besieged, even—by Poe’s law, a decade-old internet adage articulated by Nathan Poe, a commentator on a creationism discussion thread. Building on the observation that “real” creationists posting to the forum were often difficult to parse from those posing as creationists, Poe’s law stipulates that online, sincere expressions of extremism are often indistinguishable from satirical expressions of extremism.