Another large scale structure of the universe idea

In summary, the large scale structure of the universe has been considered and discounted, with many possible explanations still requiring an immense amount of space, time and energy to be created.
  • #1
Tanelorn
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15
Has the following explanation for the large scale structure of the universe been considered and discounted?Consider a universe many billions of times the size of the observable universe, so big that the homogeneous nature of the universe could even be an illusion.

At a very large distance away, it may be possible that the events of the "big bang" could be still taking place, resulting in a universe which is continually being renewed, with matter and energy there undergoing continuous inflation.

This continual inflation energy would force the observable universe to move away rapidly, and also if the observable universe is relatively small, the expansion away from us might appear similar in all directions, as we mostly observe.

If this scenario has been going on for some time, there may even be gravitational acceleration towards a large amount of matter that is already out there.

Can the above explanation be discounted with information that we already have?
The recent paper on dark flow paper seems related to this. Kashlinsky et al. 2010. ApJL, 712, L81
On a separate note, some have wondered about an edge to our universe. If black holes are no longer a part of our universe, then perhaps the "edges" to our universe are in fact everywhere. Exit right from the pinball universe!
Just throwing it out there.. Until we get more information there are probably any number of possible explanations that appear to fit, but very fascinating nonetheless.
 
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  • #2
Is the dark energy expansion of space and inflation a continuation of the same process?

http://arstechnica.com/science/news...rogress-dark-energy-dark-matter-inflation.ars


Size of the universe:

The comoving distance from Earth to the edge of the observable universe is about 14 billion parsecs (46.5 billion light-years) in any direction. The visible universe is thus a sphere with a diameter of about 28 billion parsecs (about 93 billion light-years).

According to the theory of cosmic inflation and its founder, Alan Guth, it is suggest that at present the entire Universe's size is at least 10 to power 23 times larger than the size of the observable Universe. Guth realized from his theory that the reason why the universe appears to be flat was because it was fantastically big, just the same way the spherical Earth appears flat to those on its surface. The observable universe is only an infinitesimal of the whole universe.

Questions:
Is Homogeneity required throughout the whole Universe which is quasi infinite in size?
Is the whole Universe that has become quasi infinite in size required to be created in a split second or can it be continuous process of creation?




The Big Bang and White Holes:

A more recently proposed view of black holes might be interpreted as shedding some light on the nature of classical white holes. Some researchers proposed that when a black hole forms, a big bang occurs at the core, which creates a new universe that expands into extra dimensions outside of the parent universe.

The initial feeding of matter from the parent universe's black hole and the expansion that follows in the new universe might be thought of as a cosmological type of white hole. Unlike traditional white holes, this type of white hole would not be localized in space in the new universe, and its horizon would have to be identified with the cosmological horizon.

Questions:
Can the big bang be considered to be a form of white hole, and can this be a continuous process rather than a split second event?
Can a process of continuous inflation drive the continuous expansion of the observable universe we see today?
 
  • #3
Some possible cyclic universes:

http://en.wikipedia.org/wiki/Cyclic_model


What about a continuous recycling universe which is similar to the water cycle where a quasi infinite number of black holes collect matter and energy throughout the entire universe which is continuously recycled through a white hole and inflation/expansion?

http://en.wikipedia.org/wiki/Water_cycle


Brainstorming is a good thing, especially good for thinking up outrageous alternate realities!
 
  • #4
I just watched a BBC Horizon documentary "Before the big bang". Fascinating stuff, it seems that the standard model is not acceptable as a complete explanation to many of the original believers. "Plenty of effect and not enough cause" Well the above is my outrageous contribution to such a speculative program :)

However, all of these proposed explanations at some point still require a truly enormous amount of space, time and energy to be created somehow. There is no avoiding it. If you say that branes were responsible then you have just moved the problem of creation one step further. ie what created the branes? If it is some kind of cyclical universe then what created the first cycle? We may be running around in circles.

In an almost infinite amount of time our observable universe is dissipating to the nothingness from which it apparently appeared.
 
  • #5
Tanelorn said:
Brainstorming is a good thing, especially good for thinking up outrageous alternate realities!

Not here. Please reread the PF Rules on overly speculative posts.
 

1. What is the theory behind the idea of another large scale structure of the universe?

The theory suggests that the universe may be made up of multiple large scale structures, similar to how our universe is composed of galaxies and galaxy clusters.

2. How is this idea different from the current understanding of the universe's structure?

Currently, the most widely accepted theory is that the universe is homogenous and isotropic on a large scale, meaning that it appears the same in all directions. The idea of another large scale structure challenges this notion and proposes that there may be variations in the composition and arrangement of matter on a larger scale.

3. What evidence supports the existence of another large scale structure?

One piece of evidence is the observation of large voids in the distribution of galaxies in the universe. These voids, which are essentially empty spaces, suggest that there may be other large structures beyond our visible universe.

4. How does the concept of dark matter play a role in this idea?

Dark matter, which is an elusive and invisible substance that makes up a significant portion of the universe, is believed to have a large influence on the formation and evolution of large scale structures. The existence of another large scale structure could potentially be explained by the effects of dark matter.

5. What implications would the confirmation of another large scale structure have on our understanding of the universe?

If another large scale structure is discovered, it would challenge our current understanding of the universe's structure and evolution. It could also offer insights into the origins of the universe and the role of dark matter in shaping its structure.

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