Are all universes the same age in the Multiverse?

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SUMMARY

The discussion centers on the concept of the Multiverse and whether all universes within it are the same age. Current understanding indicates that we have only one observable universe, and without evidence of a Multiverse, any claims remain speculative. In models of eternal inflation, new universes are continuously formed, resulting in a range of ages among them. Therefore, it is established that not all universes in the Multiverse would be the same age, as they can vary significantly due to the nature of their formation.

PREREQUISITES
  • Understanding of Multiverse theory
  • Familiarity with eternal inflation models
  • Knowledge of cosmological concepts
  • Basic grasp of scientific evidence and hypothesis testing
NEXT STEPS
  • Research the implications of eternal inflation in cosmology
  • Explore different models of the Multiverse, such as the Many-Worlds Interpretation
  • Study the concept of pocket universes and their formation
  • Investigate current scientific evidence regarding the existence of a Multiverse
USEFUL FOR

Cosmologists, theoretical physicists, and anyone interested in the implications of Multiverse theories and their impact on our understanding of the universe.

Canada Bob
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If we are part of a Multiverse is it likely that every universe is the same age ?
 
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We have absolutely no idea. To the best of our knowledge, we have only a single universe. If evidence ever surfaces that we live in a multiverse we'll know more.
 
Since there is zero evidence that we are part of a multiverse, you can supply any answer you like.

Also, since other universes, even should they exist, are causally removed from ours there would be no way to test any answer, so again, you can supply any answer you like and no one can prove you wrong.
 
Depends on the version of multiverse. In eternal inflation new universes are formed continuously, so they come in a variety of ages: some brand spanking new and others literally older than dirt. I can't think of any version where they would all be the same age. It's a bit of a trick question - like what color is a pink fairy?
 
Canada Bob said:
If we are part of a Multiverse is it likely that every universe is the same age ?
In general, no. Multiverse models usually include events which birth "pocket universes" multiple times.
 

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