New universe? (split from could the universe have a center)

[geordief]

Is it an impossibility to "create a new universe" at some point in the present universe?

 

Obviously assuming some far off technical ability is it theoretically possible to create a new "universe" that would have its own independent laws and also be unaffected by and not subject to the laws of the universe wherein it had been created?

 

Is that an entirely impossible concept?

 

Would there have to be some kind a a barrier between the two universes? Would the barrier have to obey the laws of both universes?

 

If such an attempt were ever to be made would someone just pipe up "it is the same universe ,just a subset"?

[Sriman Dutta]

https://en.wikipedia.org/wiki/Multiverse It's much like the multiverse concept.

Edited October 14, 2016 by Sriman Dutta

[Sensei]

https://en.wikipedia.org/wiki/Multiverse It's much like the multiverse concept.

Typically, hypothetical multiverses have different values of constants than this Universe.

Rarely, they also have different laws.

 

You should read Leonard Susskind book "The Cosmic Landscape"

https://en.wikipedia.org/wiki/The_Cosmic_Landscape

https://www.amazon.com/Cosmic-Landscape-String-Illusion-Intelligent/dp/0316013331

 

Obviously assuming some far off technical ability is it theoretically possible to create a new "universe" that would have its own independent laws and also be unaffected by and not subject to the laws of the universe wherein it had been created?

 

Is that an entirely impossible concept?

If you will make simulation of the entire Universe (in computer), you can do anything what you want.

Including becoming part of simulation, at some point..

Then become active "player" in history, or passive observer.

Edited October 14, 2016 by Sensei

[MigL]

Witten's eternal inflation postulates Bib Bangs originating anywhere in the universe due to Quantum fluctuations, the energy/time HUP, and the zero net energy universe.

These new universes could spring up anywhere and be separated by 'domain walls', where symmetry breaks occur differently and lead to differing physical laws.

One indicator of this actually happening would be monopole creation at these boundaries.

 

No-one has found any monopoles yet.

[johnmusic]

When the universe expands, what does it expand into, or does it expand into space that is being created at that moment?

 

Does that make sense?

[MigL]

Doesn't expand into anything.

The separation between existing objects in the universe increases.

( with certain constraints imposed by gravity, of course )

[Airbrush]

The universe expands into space and space is not nothing. It just seems like it.

If a big bang can happen once, then it probably can happen again. Maybe big bangs happen every Trillion years or so. Or maybe another big bang will happen not too far away and it would destroy our current universe.

[Strange]

The universe expands into space

 

No it doesn't.

 

 

If a big bang can happen once, then it probably can happen again. Maybe big bangs happen every Trillion years or so. Or maybe another big bang will happen not too far away and it would destroy our current universe.

 

There are several models that allow for multiple inflationary events. (Just to be picky, the "big bang" model describes the current expanding and cooling of the universe from an early hot, dense state.)

[geordief]

Just to the question at the start of the OP..are we all agreed that it is a tautological idea to artificially create a new universe somewhere in the universe that (obviously) already exists ?

 

That idea is a "non idea" ?

 

There is nobody who thinks it can be done or even entertained as any sort of a possibility? (apart from Brad Watson.maybe) ?

[Mordred]

the idea has been presented on many fronts. Its the basis of chatic eternal inflation.

[geordief]

Well I did specify "artificially"

 

Is the idea a non starter under those conditions .....or maybe just a pointless question?

[Mordred]

I honestly can't think how one could even theoretically "artifically" create a universe.

[Strange]

It may be related to the idea of a false vacuum. But that is a bit vague...

[geordief]

It may be related to the idea of a false vacuum. But that is a bit vague...

I have just googled "false vacuum" . Does anyone want to buy an unused nuclear fallout shelter?

 

https://en.wikipedia.org/wiki/False_vacuum

 

"we might underestimate the chances of being destroyed by vacuum decay because any information about this event would reach us only at the instant when we too were destroyed."