Could Time Travel Paradoxes Be Resolved by Multi-Worlds Theory?

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Discussion Overview

The discussion revolves around the potential resolution of time travel paradoxes through the lens of multi-worlds theory. Participants explore the implications of infinite universes and varying physical laws, particularly in relation to entropy and causality. The conversation touches on theoretical aspects of time travel, including its feasibility and the nature of time itself.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant suggests that multi-worlds theory could allow for scenarios where entropy decreases, potentially altering the dynamics of time travel paradoxes like the grandfather and mad scientist effects.
  • Another participant counters that hypothetical time travel would not necessarily facilitate movement between different universes, implying that paradoxes could still exist in our universe.
  • A third post shares a link to an article about time travel possibilities related to the Large Hadron Collider, indicating interest in experimental approaches to the concept.
  • One participant expresses skepticism about the possibility of traveling to the past, suggesting that if time travel were possible, it might only allow for future travel, especially if it involves alternate universes.

Areas of Agreement / Disagreement

Participants exhibit disagreement regarding the implications of multi-worlds theory on time travel. While some propose that it could resolve paradoxes, others argue that significant issues remain, particularly concerning the nature of time travel itself and its limitations.

Contextual Notes

Participants acknowledge the complexity of time travel theories and the unresolved nature of certain assumptions, such as the mechanics of moving between universes and the implications of entropy in different scenarios.

Who May Find This Useful

This discussion may be of interest to those exploring theoretical physics, particularly in the realms of time travel, quantum mechanics, and the philosophical implications of multi-worlds theory.

newontian
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If one of the problems with time travel is the paradox's it creates, if we take the multi-worlds theory into account where there are an infinite amount of universes and hence a infinite amount of possibilities why in one universe could there not be entropy be decreasing instead of increasing and instead of having reaction action rather action reaction, wouldn't this change everything dealing with the grandfather and mad scientist effect? And in turn changing everything
 
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In our universe, they're still issues. Hypothetical time-travel wouldn't move you from one universe to another either.
 
If time travel were indeed possible, we probably could not go into the past, but only the future. I see no real indication that shows that we can go backward, unless it includes us going to an alternate universe. In which case, that's really not time travel at all.

I think Hawking feels the same, actually, but I haven't stayed updated.
 

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