The multiverse: how we’re tackling the challenges facing the theory

[Still Waters]

The idea of a multiverse consisting of “parallel universes” is a popular science fiction trope, recently explored in the Oscar-winning movie Everything Everywhere All At Once. However, it is within the realm of scientific possibility.

It is important to state from the start that the existence (or not) of the multiverse is a consequence of our present understanding of the fundamental laws of physics – it didn’t come from the minds of whimsical physicists reading too many sci-fi books.

There are different versions of the multiverse. The first and perhaps most popular version comes from quantum mechanics, which governs the world of atoms and particles. It suggests a particle can be in many possible states simultaneously – until we measure the system and it picks one. According to one interpretation, all quantum possibilities that we didn’t measure are realised in other universes.

https://theconversation.com/the-multiverse-how-were-tackling-the-challenges-facing-the-theory-201729

[+joc]

Quote

But physicists soon realised that if inflation really is true, some regions of space-time would continue to inflate even as inflation ended in the others. The regions that continue to inflate can be considered a separate, inflating universe. This process continues indefinitely, with inflating universes producing even more inflating universes, creating a multiverse of universes.

I have always thought that if there is a Black Hole, then there must be a White Hole somewhere else.  The connecting tube between the two I would suggest is a Worm Hole.  With every Galaxy having a Black Hole, then there must be just as many White Holes and Worm Holes.  Some of these must interconnect time/space fabric.  

[Waspie_Dwarf]

18 minutes ago, joc said:

I have always thought that if there is a Black Hole, then there must be a White Hole somewhere else. 

It's one possible consequence of relativity., however white holes, by their very nature, should be extremely bright and, therefore, easy to find, but we have found none.

20 minutes ago, joc said:

The connecting tube between the two I would suggest is a Worm Hole. 

Theses are known as Einstein-Rosen bridges. Their existence is allowed by relativity but there is no evidence that they actually exist.

 

24 minutes ago, joc said:

Some of these must interconnect time/space fabric.  

.Hypothetically they do, but within our own universe.

Assuming that a hypothetical white hole, is the end of a hypothetical wormhole to a hypothetical other universe is probably pushing speculation to the limit, but weirder things have turned out to be true.

[+joc]

9 minutes ago, Waspie_Dwarf said:

It's one possible consequence of relativity., however white holes, by their very nature, should be extremely bright and, therefore, easy to find, but we have found none.

I'm just thinking that the White Hole would be created as a result of the inability of the Black Hole to  hold the vacuum.  Like breaking the camels back...and the sudden release of all of that energy would create a singularity Big Bang scenario...and suddenly a new universe is thrust into existence.  Possibly overlapping ours but most probably not as it would push the fabric of time/space and create it's own time/space continuum.  

Edited March 22 by joc