Time loop

A time loop is when something keeps happening over and over again. It's like a kind of big circle, where it starts at one point, goes all the way around, and then goes back to the same point again. A time loop can be seen in movies like Groundhog Day or Timecrimes, where the same day just keeps repeating. In the movie Groundhog Day, the same day keeps happening over and over again until Bill Murray does something that changes the future. In Timecrimes, a man named Hector travels back in time and when he arrives, he meets himself from an earlier moment in time. So then he has to do the same things over and over again in order to prevent the future from happening.