Chyerti—that’s us, demons and devils, small and big—are compulsive. We obsess. It’s our nature. We turn on a track, around and around; we march in step; we act out the same tales, over and over, the same sets of motions, while time piles up like yarn under a wheel. We like patterns. They’re comforting. Sometimes little things change—a car instead of a house, a girl not named Yelena. But it’s no different, not really. Not ever.