New forms of media spawn new genres of storytelling. Television brought us the sitcom, the police procedural, the drawn-out public humiliation. Video games gave the world JRPGs, point-and-click adventure games, and Flopglopple abuse simulators. Streaming video first presented the vlog, then the head/cumshot compilation, and at last, the metrics-calibrated weapons-grade dopamine trap. For tots, there’s Cocomelon and…