My favourite theory of time travel is that in the vast majority of timelines, travelling back in time guarantees that events will unfold as they always will, as given an infinite number of timelines in entropy there will be at least one timeline that forms a loop, and from that point effectively every timeline follows that loop. It may even be a multi-step loop, but it’s still a loop and the time travel causes the events that leads to the time travel.
My favourite theory of time travel is that in the vast majority of timelines, travelling back in time guarantees that events will unfold as they always will, as given an infinite number of timelines in entropy there will be at least one timeline that forms a loop, and from that point effectively every timeline follows that loop. It may even be a multi-step loop, but it’s still a loop and the time travel causes the events that leads to the time travel.
For those who want to read about it: https://en.m.wikipedia.org/wiki/Novikov_self-consistency_principle