What If Universes Were Made of Antimatter?

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Discussion Overview

The discussion explores the concept of universes made of antimatter, particularly focusing on the implications for black holes and the nature of a "mirror universe." Participants examine the conditions under which such universes might exist and the properties that could distinguish them from matter-based universes.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants propose that a "mirror universe" refers to one where the proportions of matter and antimatter are reversed, but the laws of physics remain unchanged.
  • Others argue that the concept of reversing matter and antimatter proportions is conditional on unknown factors regarding why these proportions exist in our universe.
  • A participant questions whether properties of black holes could reveal which universe one is observing, assuming identical but mirrored conditions.
  • There is a request for clarification on what is meant by "mirror," with some participants seeking a more precise definition of the concept.
  • Some participants express skepticism about hypothetical constructs without mathematical models, questioning the validity of the discussion based on the lack of empirical backing.
  • There is a contention regarding the hypothetical nature of the discussion, with some participants labeling it as "hypothetical garbage" while others defend the exploration of the topic.

Areas of Agreement / Disagreement

Participants do not reach consensus on the definition of a "mirror universe" or the validity of discussing hypothetical scenarios without established models. Disagreements persist regarding the nature of the discussion and its foundational assumptions.

Contextual Notes

The discussion is limited by the speculative nature of the concepts involved, particularly regarding the existence and properties of antimatter universes and the implications for black holes. There are unresolved questions about the definitions and assumptions underlying the discussion.

Quarker
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Also assuming the two universes were made of the antimatter versions of themselves
 
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What do you mean by "a mirror universe"?
 
If you just mean "a universe in which the proportions of matter and antimatter are reversed with respect to this universe but the laws of physics are otherwise the same" then black holes would be no different.

Note that this answer is conditional on the assumption that you can just reverse the proportions of matter and antimatter. We don't know why they are what they are, so we don't know if you can have a universe with different proportions or not.
 
Ibix said:
If you just mean "a universe in which the proportions of matter and antimatter are reversed with respect to this universe but the laws of physics are otherwise the same" then black holes would be no different.

Note that this answer is conditional on the assumption that you can just reverse the proportions of matter and antimatter. We don't know why they are what they are, so we don't know if you can have a universe with different proportions or not.
Assuming otherwise identical but mirror image, antimatter universes. If you could only observe the properties of one of the black holes, could you tell which universe you were in?
 
You still haven't said what you mean by "mirror". Do you just mean a universe with swapped amounts of matter and antimatter? Or something else?
 
Ibix said:
You still haven't said what you mean by "mirror". Do you just mean a universe with swapped amounts of matter and antimatter? Or something else?
Assume a two sided quantum field, so that every action in one universe has an equal but antimatter equivalent in the other, but they are divided by a quantum wall, so to speak. If you were observing a black hole in only one of the universes, is there a property it would have that would tell you which universe you were in?
 
Can you provide a reference where I can read about a "two sided quantum field"?
 
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Ibix said:
Can you provide a reference where I can read about a "two sided quantum field"?
No, it’s hypothetical. That’s why I started the post with the word assuming.
 
Quarker said:
it’s hypothetical
hypothetical garbage
 
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Quarker said:
No, it’s hypothetical. That’s why I started the post with the word assuming.
So you've asked me to imagine something you made up, that doesn't have any mathematical model backing it.

That's like me asking you for details of the lifecycle of a glerk. What's a glerk? Well, I've just made it up and there's nothing but the name and an implication that it's a lifeform of some kind. How is anyone supposed to answer a question like that?
 
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  • #11
ergospherical said:
hypothetical garbage
So what. It’s the properties of the black holes I’m wondering about. If you don’t know, feel free to say so.
 
  • #12
Let me feel free to say that your thread is now locked, pending Moderation actions (not against the other posters)...

Thread will remain closed. @Quarker -- please check your PMs.
 
Last edited:

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