Some office cultures demand self-sacrificing presentism: Last one out of the office “wins.” But for most millennials I know, the only person “forcing” them to work long hours is themselves. Not because we’re masochists, but because we’ve internalized the idea that the only way to keep excelling at our jobs is to work all the time. The problem with this attitude is that working all the time doesn’t mean producing all the time, but it nonetheless creates a self-satisfying fiction of “productivity.”