What will happen when the CMB will raise the zero?

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Discussion Overview

The discussion revolves around the implications of the Cosmic Microwave Background (CMB) radiation approaching a state where its redshift becomes negligible. Participants explore theoretical scenarios regarding the fate of the universe, particularly in relation to black holes and radiation.

Discussion Character

  • Exploratory, Debate/contested, Conceptual clarification

Main Points Raised

  • One participant suggests that as the CMB approaches zero redshift, the universe may consist primarily of black holes, which would eventually evaporate, leaving only radiation and no particles with rest mass.
  • Another participant questions the clarity of the initial posts, proposing that the inquiry might relate to the energy of CMB photons approaching zero as redshift increases.
  • A different viewpoint mentions the idea of an "unstable eternity" resulting from the evaporation of black holes through Hawking radiation.
  • One participant expresses a preference for a specific response, indicating a subjective evaluation of the contributions.

Areas of Agreement / Disagreement

Participants express differing interpretations of the initial question and the implications of the CMB's behavior, indicating that multiple competing views remain without a clear consensus.

Contextual Notes

Some assumptions about the nature of the universe's future and the behavior of black holes and radiation are not fully articulated, leaving room for various interpretations and unresolved questions.

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What will happen when the CMB will raise the zero?
 
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What will happen when the CMB will raise the zero?

The zero will implode.
 


Ignition said:
What will happen when the CMB will raise the zero?

One suggestion by Penrose is that by the time the redshift of the CMB approaches zero, most of the mass of universe will be locked up in numerous black holes, but because by then the radiation from black holes exceeds the energy absorbed from the CMB the black holes evaporate away to leave a universe that is all radiation, with no particles with rest mass. He likes the symmetry of a universe that starts out as all radiation and ends up as all radiation.
 


These posts are not making sense at the moment.

Are you asking: "What happens when the redshift of the CMB approaches infinity, in which case the energy of the individual CMB photons approach zero?"

In the inconceivable future the matter would end up locked in BHs that after eons of time will evaporate through Hawking radiation leaving behind an unstable eternity.

Garth
 


I like Fluxman's answer best.

Jon
 

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