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Question Is the Universe itself a Black Hole?

Oct 23, 2019
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OK, This may be a really dumb questrion, but now that there is a forum in which to ask the question, here is one that I have had for a long time.

Considering how super dense the universe was just after the Big Bang, I have always wonder if when we look at the universe we are looking at a Black Hole from the inside out? Would not the mass and density of the early universe meet the requirements for a Black Hole? If so then the inside of a this Black Hole in particular is not a singularity.
 

rod

Oct 22, 2019
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Good question. My thoughts here. Is the beginning of the universe created via white hole cosmology? I offer this quote for readers. "There are only 3 options for the origin of this universe: 1) it has always existed 2) it suddenly appeared from nothing 3) it was created supernaturally - “It is then tempting to go one step further and speculate that the entire universe evolved from literally nothing.” - Guth & Stienhardt, May 1984, Scientific American
 
Oct 23, 2019
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I don't know about white hole cosmology, but as for the universe being a black hole, I believe I am corrrect in saying that nothing has ever escaped the boundary/event horizon of the universe, whatever that bounday may be? In other words, like it or not, we are stuck here.
 

rod

Oct 22, 2019
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Okay, we are stuck here :) From what I read in cosmology now, we have the multiverse with inflation that triggers the Big Bang event so perhaps no black hole at the beginning. Perhaps some on Earth will move into the multiverse but I know using my telescopes I do not see the multiverse or universe emerge from an area smaller than an electron. I do see and observe sunspots on the Sun moving across the solar disk and the Great Red Spot moving across Jupiter as well as the Galilean moons orbiting. Those observations I know for sure are real because I have first hand knowledge of those events :)
 
Oct 21, 2019
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Could be, I came up with a theory we live in an infinitely dimensional multiverse and why we have three dimensions is because we've been compactified into and infinite series of black holes, each one compactifiing one dimension. Black holes in our universe would be compactifing 3d down to 2d universes. Following that our black hole could have 2d black holes on their "surface" compactifing their 2d universes down to 1d universes.
 

twr

Oct 23, 2019
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Could be, I came up with a theory we live in an infinitely dimensional multiverse and why we have three dimensions is because we've been compactified into and infinite series of black holes, each one compactifiing one dimension. Black holes in our universe would be compactifing 3d down to 2d universes. Following that our black hole could have 2d black holes on their "surface" compactifing their 2d universes down to 1d universes.
Sorry but this is not a theory. A theory must be falsifiable. You can't falsify such claims. It is a mental game but not more.
 
Oct 21, 2019
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You're right, theory was the wrong word, a hypothesis is what I meant. Then again many people say String theory (m-theory) also isn't a theory. In fact if you take that definition one step further the theory that exactly accurately describes everything also won't be a theory even if someone hypothesizes it because no one would ever be able to falsify it. Test it yes, falsify it no.
 
Oct 21, 2019
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@Spencerpam

Energy falling in. In fact if the progression of apparent time was pushed forward by the effect then the space increase would seem steady even if the actual mass increase wasn't. Although I think the expansion would actually be driven from the energy of background radiation emanating (via hawking radiation) from higher uncompactified dimensions. If that were the case if large amounts of energy fell in the universe may suddenly start expanding. Cosmic inflation anyone?

The scary thing about that is the thought that the conditions on the universe could suddenly change without warning. With that idea the universe, after a very long time, would eventually achieve a negative energy state. Once the 4 dimensional universe outside our universe cools down more than the temperature in our's. For all we know (and most likely) this negative background radiation effect would already being happening in the higher uncompactified dimensional levels far beyond the 4 dimensional one.

We'd start to see an accelerating collapse of the universe as the negative background radiation started to dominate everything, but it wouldn't get hot as it collapsed because the negative background radiation would be sapping the energy out of everything. Creepy...

It could also explain how dimensions are compactified in m-thoery, and why some higher dimensional string-theories seem to be constructs for some lower dimensional string-theories (hence why most string-theories seem to describe different aspects of the same thing). I really need to write something much more detailed about it, although I guess putting the idea on here prevents someone from stealing the idea outright.
 
Oct 28, 2019
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@Spencerpam

Energy falling in. In fact if the progression of apparent time was pushed forward by the effect then the space increase would seem steady even if the actual mass increase wasn't. Although I think the expansion would actually be driven from the energy of background radiation emanating (via hawking radiation) from higher uncompactified dimensions. If that were the case if large amounts of energy fell in the universe may suddenly start expanding. Cosmic inflation anyone?

The scary thing about that is the thought that the conditions on the universe could suddenly change without warning. With that idea the universe, after a very long time, would eventually achieve a negative energy state. Once the 4 dimensional universe outside our universe cools down more than the temperature in our's. For all we know (and most likely) this negative background radiation effect would already being happening in the higher uncompactified dimensional levels far beyond the 4 dimensional one.

We'd start to see an accelerating collapse of the universe as the negative background radiation started to dominate everything, but it wouldn't get hot as it collapsed because the negative background radiation would be sapping the energy out of everything. Creepy...

It could also explain how dimensions are compactified in m-thoery, and why some higher dimensional string-theories seem to be constructs for some lower dimensional string-theories (hence why most string-theories seem to describe different aspects of the same thing). I really need to write something much more detailed about it, although I guess putting the idea on here prevents someone from stealing the idea outright.
What do you know about the cold spots they claim exist around black holes
 
Oct 21, 2019
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nothing. Although I suppose pretty much all inactive stellar mass black holes would be colder than the surrounding universe.
 
Nov 1, 2019
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Interesting thought. But how could that explain the expanding universe?
It can explain expanding Universe. if we assume, we are inside black hole, that means we see the white hole around us. Instead of driving time&space fabric into singularity it drives it out of singularity, i.e. - expand. You can ask where is this white hole? Try to imagine that we are inside of our Universe which has 90 bln light years in diameter and expands all the time. Wherever we are we are in the MIDDLE of this sphere: on Earth surface, in Andromeda, on Perceids - it doesn't matter. What is beyond this sphere? Nothing. There is neither time nor space. From geometrical point of view and point of view of relativity - it is a dot with infinite mass. Negative mass, since it pushes all the matter from itself (can it explain a black matter/energy, uhh?) And all our Universe is just warped around this dot. I like this idea about warped Universe: https://www.space.com/universe-may-be-curved.html?utm_source=Selligent&utm_medium=email&utm_campaign=9721&utm_content=20191106_SDC_Newsletter+-+adhoc+&utm_term=3272902&m_i=ApzE_qYxiVzIdQgywFlB+I9HK1tirY3SPwqgTzRgD3W34fmENoBryqO1lcEFmfZh3nbLFPTCrY5zjwjqF3kfxqZPlddgldaqAs
 
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