> They generally don't address the causality violations So the stated problem with causality violations is that if you went to the past and did something the(n

> They generally don't address the causality violations So the stated problem with causality violations is that if you went to the past and did something the(n), it's going to change the future from which you started. What if it doesn't? As in, you can't really do anything which changes future, for a reason that an arbitrary numbers of time travelers have already went to past, changed it and had it reflected in the future, so after all those changes the timeline stabilized in an eigenline - that is, the future is robust towards any subsequent changes via the past. In this way there is no causality violation - go ahead, travel to past, try to change anything, the whole world is arranged so that the future won't be affected, one way or another. Roughly speaking, you won't succeed trying to kill your grandfather no matter how'd you try - something will always happen which would prevent it.