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Perpetual Universe

petrushka.googol
in Speculations

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Is there a possibility that the Universe is perpetually expanding ? I think that after the initial impetus of the big bang where matter was distributed progressively, gravitation between the different sub-components of the Universe (like globular clusters) determines how the Universe will pan out. (much like Plasticine). When interactive forces become very small voids are created which are either worm holes or black holes, implying the creation of new "universes". This process can continue perpetually. The semantics of the word "Universe" are open to debate. :wacko:

It is possible that the universe will continue expanding for ever. However...

 

When interactive forces become very small voids are created which are either worm holes or black holes, implying the creation of new "universes".

 

These voids would simply be empty. Not black holes (or worm holes, even if they exist). The creation of black holes requires a concentration of matter, not empty space.

 

You seem to be proposing something like Hoyle's continual creation model. This doesn't work for a number of reasons. One bing that it doesn't explain the strongest evidence for the big bang model, the CMB.

 

But there are (highly speculative) models where black holes create new universes (which would be pretty cool, if true). Look up Nikodem Popławski's work for more detail.

When interactive forces become very small voids are created which are either worm holes or black holes, implying the creation of new "universes".

 

!

Moderator Note

Any science (models, evidence, citations to such, etc) you can offer to back this claim up? (The status of the thread depends on your reply)

It is possible that the universe will continue expanding for ever.

Exponential spatial expansion forever is not compatible with known or AFAIK speculative physics.

 

There would be [latex]{2}^{\aleph_{0}}[/latex] finite units of space ie as many finite units as there are zero volume points in the universe, which is generally considered impossible.

 

This issue can be avoided by saying that that at indefinitely distant past and future times the universe is not expanding, but you still have to explain why expansion started and eventually stopped.

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