The most potentially powerful objection to the possibility of time travel stems from the fact that it can, under the right conditions, give rise to closed causal loops, and closed causal loops can be ...

Causal loop diagrams are visual aids for analyzing relationships between variables. They can serve as a means of identifying ...

Expertise from Forbes Councils members, operated under license. Opinions expressed are those of the author. A reinforcing loop is one type of causal loop, a term used to describe one way a number of ...

The second season of Star Trek: Discovery hinges on the mysteries of time travel. The crew pursues seven red burst signals through the stars, eventually finding they were sent by a time traveler they ...