Universe Was Born in a Black Hole?

In summary, the theory that the Universe was born in a black hole has some evidence to support it, but is not confirmed by any fundamental theories. The theory is proposed by some as an explanation for the size of the universe, and some argue that it could be a part of a multiverse. My opinion is that the Universe might be a blackhole, and that it always existed. There is evidence to suggest that the size of the universe lies in the range of the Schwarzschild radius for a black hole, which if true means that our universe is a blackhole.
  • #1
pivoxa15
2,255
1
How credible is the theory that the Universe Was Born in a Black Hole?
What proportion of physicists support this view?

Is it predicted by any fundalmental theories?

There is evidence to suggest that the size of the universe lies in the range of the Schwarzschild radius for a black hole.
 
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  • #2
I have heard a theory that the Universe was born in a little piece of 'void' ...
All theories are equally valuable until one of them is proved ;)

But that's interesting... If the Universe was born in a black hole ... Where did this hole came from?
 
  • #3
pivoxa15 said:
How credible is the theory that the Universe Was Born in a Black Hole?
What proportion of physicists support this view?

Is it predicted by any fundamental theories?

There is evidence to suggest that the size of the universe lies in the range of the Schwarzschild radius for a black hole.

Bart said:
I have heard a theory that the Universe was born in a little piece of 'void' ...
All theories are equally valuable until one of them is proved ;)

But that's interesting... If the Universe was born in a black hole ... Where did this hole came from?

My speculation.
IMO our universe IS a (black)hole. Earlier iN PF however this item was raised and links to articles were given with arguments that it could not be a BH. IMO our observable universe is part of its changing kernel and was phase-transformed (and not created) 14 billion years ago, i.e always existing while changing. Our hole, IMO, lives orders of magnitude longer than those 14 billion years and will continue to live orders of magnitude longer before it will be evaporated in the surrounding energysoup.THE universe (name it Googolverse, infinity verse, multiverse or whateververse) IMO contains an infinite number of concentrationholes all within a soup of energy.
I know this idea is (too?) speculative but IMO more realistic than the idea of creation out of nothing.
Maybe LQG theory of M. Bojowald can serve an entrance to further thinking.
Also among stringtheorists there are individuals who don't accept our BB as a beginning and there are also individuals amongst them finding a multiverse a reasonable boundary/environment for our universe. But personally I considder stringtheory more as a mathemathecal archive box than as a physical model which agrees reality (who am I to dare to say this?).
 
  • #4
hurk4 said:
My speculation.
IMO our universe IS a (black)hole.
Now that's a brave theory. However, it might be interesting. So in your opinion where this hole we live in is located? In another universe?

hurk4 said:
THE universe (name it Googolverse, infinity verse, multiverse or whateververse) IMO contains an infinite number of concentrationholes all within a soup of energy.
Should we consider then any other black holes as other Universes?

hurk4 said:
I know this idea is (too?) speculative but IMO more realistic than the idea of creation out of nothing.
I have read somewhere that new univereses 'appear', 'happen'. What's your attitude for this?

LQG theory of M. Bojowald <- what is that? Can you serve me a link or a brief explanation?
 
  • #5
pivoxa15 said:
How credible is the theory that the Universe Was Born in a Black Hole?
What proportion of physicists support this view?

Is it predicted by any fundalmental theories?

There is evidence to suggest that the size of the universe lies in the range of the Schwarzschild radius for a black hole.

I think this theory is negated by the simple fact that the metric for BHs and the present expanding universe are not the same. I don't think that BHs have a metric that incorporates expansion whereas our observable universe does.
 
  • #6
pivoxa15 said:
There is evidence to suggest that the size of the universe lies in the range of the Schwarzschild radius for a black hole.

There are a lot of threads on the relation between the universe and a black hole. This particular issue is discussed in detail in this thread:

https://www.physicsforums.com/showthread.php?t=128263"
 
Last edited by a moderator:
  • #7
Bart said:
Now that's a brave theory. However, it might be interesting. So in your opinion where this hole we live in is located? In another univ

Should we consider then any other black holes as other Univ

I have read somewhere that new univereses 'appear', 'happen'. What's your attitude for this?


LQG theory of M. Bojowald <- what is that? Can you serve me a link or a brief explanati

Bart,
It took some time before I could give you my reaction but here it is.

- In order not to be misunderstood, I make a distinction between observable universe (OU), Our Blackhole Universe (OBU), and The Infinite Universe (TIU)

- As we already know, inside OU there are black-holes. Their average densities are orders of magnitude higher then the average density of OU which belongs IMO to the kernel of OBU which is indeed located in OBU. The heavier black holes are the less dense they are. I question myself should there be a minimum to density, just as there is a maximum (Planck-density) for the smallest possible black hole?
- OBU, I suppose, is located in TIU (maybe parallel in a multiverse or even nested in a gigaverse or so?)
- IMO the idea of other black hole-universes can be a consequense of relative thinking.
- Blackholes are generated and are due to evaporation, so I don't exclude them.
- Just use the search option by typing Bojowald in. You also find Rovelli and Asthekar.
Marcus in "Intuitive content of Loop Gravity" gives a lot of information.
He is a specialist, not me.
 
  • #8
There is far too much speculation in this thread. Unsupported personal theories are not welcome on PF. Thread closed.

- Warren
 

What is the theory of the "Universe Was Born in a Black Hole?"

The theory proposes that the universe as we know it was created through the collapse of a massive black hole in a previous universe, leading to the Big Bang and the beginning of our current universe.

How does this theory explain the creation of the universe?

The theory suggests that the immense amount of energy and matter within the black hole was compressed to such a high density that it eventually exploded in a massive explosion, giving rise to our universe.

What evidence supports this theory?

Some scientists have pointed to the cosmic microwave background radiation, which is the remnant of radiation from the early universe, as potential evidence for the theory. Other evidence includes the observation of supermassive black holes at the center of galaxies and the concept of black hole thermodynamics.

What are the potential implications of this theory?

If this theory is true, it would change our understanding of the origins of the universe and potentially provide new insights into the nature of black holes and the laws of physics governing them. It could also have implications for our understanding of time and space.

Is this theory widely accepted in the scientific community?

While the theory has gained some traction among some scientists, it is still a highly debated and controversial topic in the scientific community. Further research and evidence are needed to fully support this theory and its implications.

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