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> Specifically it means things that happen in the future can affect things in the past (communication past the light cone).

Sure, and that's not a problem so as long as self-consistency is preserved.

> But to rewrite how a sequence of events happens, well that's a big fundamental change.

Depends how you look at it. There are retrocausal explanations of quantum mechanics, for instance.




> Sure, and that's not a problem so as long as self-consistency is preserved.

You break the lightcone...

> Depends how you look at it. There are retrocausal explanations of quantum mechanics, for instance.

Let me save people the time, there's critiques at the bottom but there is no actual evidence for retrocausal explanations: https://plato.stanford.edu/entries/qm-retrocausality/


> You break the lightcone...

The point is you can't. Existence would be a static 4D structure. No matter how you tried to change the past, your attempts are already part of your own history and clearly all failed.

> Let me save people the time, there's critiques at the bottom but there is no actual evidence for retrocausal explanations: https://plato.stanford.edu/entries/qm-retrocausality

There is no evidence for any interpretation of QM. That's what makes them interpretations and not distinct theories.




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