What would the largest anti-matter object be?

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Discussion Overview

The discussion revolves around the concept of the largest possible anti-matter object, exploring various forms such as anti-particles, anti-hydrogen, anti-carbon, and even larger constructs like anti-planets or anti-galaxies. The scope includes theoretical considerations and speculative ideas regarding the existence and formation of anti-matter in the universe.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants suggest that the largest anti-matter object could range from anti-particles to entire anti-galaxies.
  • Others argue that there is currently no evidence of anti-matter existing beyond the particle level or anti-hydrogen produced in laboratories.
  • Speculations exist about the possibility of entire anti-matter galaxies, but some participants express skepticism about this idea, citing the agnostic nature of photons regarding matter and anti-matter.
  • It is mentioned that the conditions immediately after the big bang were too crowded for anti-matter to have been segregated from matter, making the existence of large anti-matter objects unlikely.
  • Some participants note that the segregation of anti-matter is theorized to have occurred during rapid inflationary epochs, but the feasibility of such segregation is questioned.
  • There is a consensus among some that macroscopic amounts of anti-matter are highly unlikely to exist in our universe due to the lack of a viable mechanism for their segregation.
  • One participant emphasizes that the disparity between matter and anti-matter remains a significant mystery in cosmological models, supported by evidence suggesting this disparity is real.

Areas of Agreement / Disagreement

Participants generally express skepticism about the existence of large amounts of anti-matter, with multiple competing views on the mechanisms of segregation and the implications for cosmology. The discussion remains unresolved regarding the potential existence of large anti-matter objects.

Contextual Notes

Limitations include the speculative nature of the discussion, reliance on theoretical models, and the absence of empirical evidence for large-scale anti-matter structures.

Nasher
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Any suggestions to what the largest anti-matter object would be?

Would it be just anti-particles, or would it be anti-hydrogen, or anti-carbon, larger anti-atoms, or multiple anti-atom object, or anti-one_kilogram object, or anti-planet,
or antistar, or anti-galaxy, or anti-cluster, or anti-universe?
 
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It could be any of the items proposed. However, as far as actual existence is concerned, there isn't any evidence of any anti-matter except at the particle level or anti-hydrogen (created in laboratories).
 
There are wild speculations that segments of the universe could contain whole antimatter galaxies. We wouldn't know it since photons are matter-antimatter agnostic.

But it is exceedingly unlikely.
 
There are wild speculations that segments of the universe could contain whole antimatter galaxies. We wouldn't know it since photons are matter-antimatter agnostic.

But it is exceedingly unlikely.
Immediately after the big bang, the universe was much more crowded, so it is highly unlikely that anti-matter could have been segregated from matter.
 
mathman said:
Immediately after the big bang, the universe was much more crowded, so it is highly unlikely that anti-matter could have been segregated from matter.

I think the segregation is supposed to have occurred during rapid inflationary epochs
 
I think the segregation is supposed to have occurred during rapid inflationary epochs

Thigs were flying around so fast, it is hard to see that anything could segregate.
 
It is highly unlikely macroscopic amounts of anti-matter [more than atomic particle sized] exist within our universe. There is no viable mechanism explaining how they became segregated. Were they not segregated, life on Earth would be difficult to explain. This is a fairly significant mystery in any cosmological model. There is no mechanism to explain the disparity, but an abundance of evidence exists suggesting the disparity is real.
 
nearly impossible for there to be large ammounts of anitmatter.
 

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