You sat down to watch one video. The second it ended, another started on its own. Then another. Each one is short, a little bit funny or interesting, just enough to keep you there. You didn't choose any of them — they just kept arriving. You look up and an hour has gone. You don't really remember most of what you watched. You meant to do something else — you can't quite recall what. There's a faintly empty feeling, like you ate a whole bag of crisps without tasting any of them. The next video is already starting.