The Impact of Multiple Universes on Big Bangs

  • Context: Graduate 
  • Thread starter Thread starter space_buster
  • Start date Start date
  • Tags Tags
    Direction
Click For Summary

Discussion Overview

The discussion revolves around the concept of multiple universes and their potential influence on the occurrence and direction of Big Bangs. Participants explore theoretical implications, models, and analogies related to cosmology, including inflation and cyclic models.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • Some participants propose that the presence of one universe could influence the direction of a nearby Big Bang, likening it to water splashing in a confined space.
  • Others argue that inflation creates new space rather than expanding into pre-existing space, suggesting that a universe created in a lab would not affect our own.
  • There is a claim that there is no evidence for the existence of multiple universes, and that the Big Bang should not be viewed as an explosion in space.
  • One participant introduces the concept of "bubble collisions" in the context of eternal inflation, where different regions may collide, potentially observable in the cosmic microwave background.
  • Another viewpoint suggests that if multiple universes exist, some must have evolved in ways that could influence Big Bangs, with discussions on entropy and the arrow of time.
  • A participant presents a hypothesis involving a helical movement in the expansion of universes, proposing a model that incorporates multi-layered energy-mass distributions.
  • There is speculation about the nature of bangs occurring from nothing versus within existing universes, and the implications of multiple inflationary regions interacting.
  • Some participants express skepticism about personal theories and suggest focusing on foundational cosmology before pursuing complex ideas.

Areas of Agreement / Disagreement

Participants express a range of views, with no consensus on the influence of multiple universes on Big Bangs. Disagreement exists regarding the validity of personal theories and the necessity of foundational knowledge in cosmology.

Contextual Notes

Limitations include the speculative nature of personal theories, the lack of empirical evidence for multiple universes, and the complexity of cosmological models that may not be fully understood by all participants.

space_buster
Messages
13
Reaction score
0
Direction to Big Bangs ?

If there are many universes , can it be possible that due to the presense of a universe the nearby Big Bang occurs in some direction(Universe effect on other Universes and Big Bangs) ?
Just like if there is a wall and a water balloon is made to burst nearby , the water splashes in the available space only ...
 
Space news on Phys.org


space_buster said:
If there are many universes , can it be possible that due to the presense of a universe the nearby Big Bang occurs in some direction(Universe effect on other Universes and Big Bangs) ?
Just like if there is a wall and a water balloon is made to burst nearby , the water splashes in the available space only ...

Hi,

Remember, when inflation occurs in a region, it creates new space, rather than expanding into pre-existing space. Alan Guth, the founder of inflationary cosmology, showed that if we created a universe in a lab (obviously, technological limitations ignored) it would not have any effect on us.

BTW, welcome to the forum!
 


space_buster said:
If there are many universes , can it be possible that due to the presense of a universe the nearby Big Bang occurs in some direction(Universe effect on other Universes and Big Bangs) ?
Just like if there is a wall and a water balloon is made to burst nearby , the water splashes in the available space only ...

There is no evidence that more than one universe exists. Also, the Big Bang was not an explosion in space, it was the point in time that the universe began to expand. This is very non-intuitive and there are plenty of threads here on PF about it, just use the search function and you should find lots. As such it does not work the way you think it does.
 


space_buster said:
If there are many universes , can it be possible that due to the presense of a universe the nearby Big Bang occurs in some direction(Universe effect on other Universes and Big Bangs) ?
Just like if there is a wall and a water balloon is made to burst nearby , the water splashes in the available space only ...
Not really.

However, a similar effect occurs in the context of eternal inflation. In eternal inflation, you get what are known as "bubble collisions". This happens in a model where you have an inflating space where different regions may tunnel to different energy states (this is a natural picture in string theory, for example). These regions with different energy states may collide, and if this did occur in our past, we might be able to see it in the cosmic microwave background.

In case anybody is interested in the theoretical work describing this, see here:
http://arxiv.org/abs/0901.0007
 


can it be possible that due to the presense of a universe the nearby Big Bang occurs in some direction...

If there are many universes, some MUST have evolved in such a manner ...maybe even an infinite number.

Stranger things have been discovered. Also depends on what you mean by direction...they likely all have a 'direction' governed by increasing entropy...'the arrow of time'...

edit: if they did not, I guess they'd promptly vanish.


For more on multiverses, check:
http://en.wikipedia.org/wiki/Multiverse

There is no evidence that more than one universe exists.

I guess that's accurate. But we have possible hints otherwise...we'll have to wait and see. If you think that way then you are stuck with 'one of a kind never to be repeated single big bang'...always possible, but that's not the way physics usually works...

But it is also accurate to say there is no evidence that more than one universe dosn't exist. I prefer to think that way.

It just occurred to me that the Steinhardt-Turok colliding branes [cyclic]model likely has a direction of the sort you might be considering...the universe is contained between colliding branes...and 'recycles' in finite 'bangs'.

http://en.wikipedia.org/wiki/Cyclic_Universe_Theory#The_Steinhardt.E2.80.93Turok_model

and more here: http://en.wikipedia.org/wiki/Cyclic_Universe_Theory
 
Last edited:


My hypothesis is to some extent similar to Cyclic Model , but however not infinite cycles
Actually I was thinking that if universes expand under the influence of other universes , now considering a specific inflation category , the expansion starts circularly but I wanted to add a helical movement to the expansion which will distribute the same universe into multi layers and each sub layer has its own energy-mass distribution and space -time relations . The reason that made me to think of adding of helical movement is to satisfy the "EXPANDING UNIVERSE" .
"My whole concept can be considered analogous to a simple balloon inflation(partial circular+helical)" .
By this I am easily able to tell as to why we are not able to see thinks(dark matter,Black Holes and many other concepts)
I am currently trying to figure out the Energy-Mass distribution , time-relation from the place where the p-brane disturbances started ...
Suggestions are always heartly welcome
 


I can't answer any of your questions immediately above, but another variable would be to consider if some kind of a 'bang' occurred from nothing or, alternatively, occurred within an existing universe. And what happens if one bang is followed by another, say in the range of Planck time...two inflationary regions bumping...or if they bump now during mere 'superluminal' expansion...or whatever other short time scale you'd like...a version of the bubble scenario...
 
Last edited:


Please! , I want suggestions to whether I should continue in the direction I am thinking or should I drop this idea ...
 


If you are interested in actual physics, you should drop it and focus on more basic stuff until you have a better understanding of cosmology.
 
  • #10


space_buster said:
Please! , I want suggestions to whether I should continue in the direction I am thinking or should I drop this idea ...

Until you understand the actual math that underlies current theory then I would drop it. My suggestion is that you take classes on it, learn about cosmology, and then if you still want to show that your model is possible you will have the tools required to do so. We cannot help you any further than this, as personal theories are not allowed on PF, as that is not what the site is for.
 

Similar threads

High School Big Bang and Infinite Universe
  • · Replies 20 ·
Replies
20
Views
3K
Undergrad Questions about the Location of the Big Bang and the Age of the Universe
  • · Replies 8 ·
Replies
8
Views
3K
High School Does an infinite universe contradict a Big Bang origin?
  • · Replies 65 ·
3
Replies
65
Views
10K
Graduate Form of energy at time of big bang
  • · Replies 11 ·
Replies
11
Views
4K
Undergrad Shouldn't the Big bang be physically impossible?
  • · Replies 25 ·
Replies
25
Views
4K
Undergrad Does the Cosmological Principle in any way underpin Big Bang Theory?
  • · Replies 33 ·
2
Replies
33
Views
4K
Undergrad Did James Webb cast serious doubt on the Big Bang?
  • · Replies 15 ·
Replies
15
Views
4K
High School I don't understand the evidence or possibility of the Big Bang
  • · Replies 3 ·
Replies
3
Views
2K
High School Accelerated expansion of the universe
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Wheeler's Mutability principle and multiple universes?
  • · Replies 4 ·
Replies
4
Views
2K