Closed causal loop

A closed causal loop is a situation where a cause and its effect create a cycle that eventually leads back to the original cause. Imagine a time traveler who goes back in time to deliver a message, which then inspires their own existence. In this loop, the action of traveling back in time both influences the past and is influenced by it, without a clear starting point. This concept raises intriguing questions about time, causality, and the nature of events, often explored in science fiction and philosophical discussions about time travel.