Let's imagine there is a scenario where someone has only $100. You steal all the money they have. You take the $100 from that person and return it to them in the past. You tell them that the $200 is to make up for what someone is about to steal. Now, you go forward in time and steal the $200. You return back and give them $200 and they have $400 stolen. The process repeats. How would this make sense? I do not believe in paradoxes. Would it be a closed time-like curve? Are you jumping between alternate universes? What are your thoughts? My personal belief is that causality wouldn't be violated. The cause of the loop would be your urge to travel back. The effect would be all of the events within the loop. Seeing as how time is measured by cause and effect, you would be travelling forward still as you go back. That is very strange. That would mean time travel exists in a way. Yet, it doesn't. More like time displacement. If actual time travel is impossible, you'd probably have to go to a different world-line.