Time travelers are individuals who, in fiction and theoretical discussions, can move between different points in time, much like we move through space. This concept is often explored in science fiction literature and films, where characters use devices like time machines to visit the past or future. The idea of time travel raises intriguing questions about causality and the nature of time itself. It has been a popular theme in works by authors such as H.G. Wells and Isaac Asimov, who have imagined various scenarios and consequences of altering historical events or experiencing future societies.