Could universe be a blackhole inside a white hole?

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Discussion Overview

The discussion revolves around the possibility of the universe existing as a white hole within a black hole, exploring theoretical implications and models related to black holes and white holes, including references to the "Fecund Universes" theory. The scope includes theoretical physics and cosmology.

Discussion Character

  • Debate/contested, Theoretical exploration

Main Points Raised

  • Some participants question the possibility of the universe existing as a white hole within a black hole, suggesting that the title of the thread may be incorrect.
  • One participant references a model by Poplowskii that involves torsion and spin, which attempts to account for the cosmological constant but reportedly failed to explain early universe large scale structure formation.
  • Several participants assert that there is no established theory or model suggesting the existence of a black hole inside a white hole or vice versa.
  • A participant seeks clarification on the compatibility of the "Fecund Universes" theory with the existence of white holes, questioning whether Smolin's theory precludes them.
  • Another participant notes a lack of mention of white holes in the context of the "Fecund Universes" theory.

Areas of Agreement / Disagreement

Participants generally express disagreement regarding the existence of a black hole inside a white hole, with multiple views on the implications of existing theories like "Fecund Universes." The discussion remains unresolved regarding the compatibility of these concepts.

Contextual Notes

Limitations include the lack of consensus on the definitions and implications of black holes and white holes, as well as the unresolved status of certain theoretical models and their applicability to the discussion.

jordanm5144
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Would it be possible for the universe to exist as a white hole within a black hole? I know about the whole black hole universe theory, though I never really looked into it.
 
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jordanm5144 said:
Would it be possible for the universe to exist as a white hole within a black hole? I know about the whole black hole universe theory, though I never really looked into it.

I think the title of this thread might be the wrong way round.

Try this:
http://www.sciencedirect.com/science/article/pii/S1384107611000790

They suggest that a white hole might be like the Big Bang. Is this like what you meant?
 
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jordanm5144 said:
Would it be possible for the universe to exist as a white hole within a black hole? I know about the whole black hole universe theory, though I never really looked into it.

I know of no proposed theories or models which even suggest this is possible.
 
Drakkith said:
I know of no proposed theories or models which even suggest this is possible.

Poplowskii has such a model or did at one time, it involved torsion and spin to attempt to account for the cosmological constant and the homogeneous and isotropic nature of the universe. No idea if he still follows or continues the model. If I recall the model failed to account for early universe large scale structure formation.
 
That, and there is no such thing as a "black hole inside a white hole".
 
bapowell said:
That, and there is no such thing as a "black hole inside a white hole".

I think the title's wrong. He means a white hole inside a black hole.
 
craigi said:
I think the title's wrong. He means a white hole inside a black hole.
Yeah. No such thing as that either.:rolleyes:
 
bapowell said:
Yeah. No such thing as that either.:rolleyes:

Could you explain a bit more in the context of Fecund Universes?

Are you saying that Fecund Universes isn't a viable theory, that white holes don't exist, or the two are incompatible?
 
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I'm saying that there is no solution in Einstein gravity that describes a white hole inside a black hole. I'm not familiar with "Fecund" universes -- can you provide a reference?
 
  • #10
bapowell said:
I'm saying that there is no solution in Einstein gravity that describes a white hole inside a black hole. I'm not familiar with "Fecund" universes -- can you provide a reference?

http://simple.wikipedia.org/wiki/Fecund_universes

If what you're saying is correct then are we to presume that Smolin's theory precludes white holes?

Is there even a solution to Einstein gravity that could he could use?
 
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  • #11
Thanks for the reference. I don't see any mention though of white holes as part of the "fecund universe" construction...
 

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