You're working on a project and it's going badly. You keep spending time fixing mistakes, even though starting fresh might be smarter. Later, you plan a group trip with friends. Halfway through, it's clear the destination is expensive and crowded-but you decide to go anyway, just because you've already told everyone and booked a few things. In both cases, it feels like you can't turn back because you ... time. But sometimes stopping early is the best choice. Our brains nudge us to keep going when we've started something, even if it's not working out. Take the quiz to discover why we do that.