Exploring the Possibility of Sub-Universes in an Infinite Multiverse

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In summary, the conversation discusses the topic of multiple universes and whether they can be considered as sub-universes that make up a larger universe. The participants also touch on the idea of separating universes based on their behavior and the limitations of observing other universes. The concept of the Multiverse theory is mentioned as a possible explanation for the existence of other universes. Ultimately, the conversation highlights the complexities of understanding and discussing the concept of multiple universes.
  • #1
JetBlckNewYr03
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Say if there were a large to infinite number of universes, why can't they be sub-universes that make one big universe that accounts for everything. Would it be because the other universes behave differently than the one we observe or perhaps some other reason? I don't see why we would separate them as a different universes when it could just be part of something bigger.

What are your thoughts on this?
 
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  • #2
this is a common misunderstanding.

one would separate these universes because there is no reason to have them in the same group. what happens in one universe can have no observable effect in another, therefore they are not compadable and should not be grouped together.
 
  • #3
what happens in one universe can have no observable effect in another

If we can't observe it and there's no way we can get there, then that basically means it's not even there in our reality.
 
  • #4
Originally posted by JetBlckNewYr03
If we can't observe it and there's no way we can get there, then that basically means it's not even there in our reality.

Exactly, which is why "sub-universe" is a good term, as there can only be one "Universe".

Also, think of this: Space and time exist within our Universe, do they not? So, if there were such a thing as another "Universe", it would be separated from us by... ... ... well, nothing. It couldn't be separated from us at all, could it?
 
  • #5
Also, think of this: Space and time exist within our Universe, do they not? So, if there were such a thing as another "Universe", it would be separated from us by... ... ... well, nothing. It couldn't be separated from us at all, could it?

That's a good question. I think we need to know more about our universe before we start to go into thinking about other universes. But I just want to hear what all of you think.
 
  • #6
Originally posted by JetBlckNewYr03
That's a good question. I think we need to know more about our universe before we start to go into thinking about other universes. But I just want to hear what all of you think.

And yours is a very valid question, giving the fact that one explanation of Schrodinger's theory is the Multiverse theory (which postulates that, every time some event occurs, the other possible events (that could have occurred at that time) also occur, but in different Universes). This is a simplification of Multiverse theory, but it suffices to explain why the concept of other Universes (seperated from us by nothing at all (Run through the E.i.N.S.-->
"Not separated from us by anything at all)) is still studied by scientists.
 
  • #7
it's not separated by us by anything (or nothing), you're right. but to simplify: the light cone of any event in another universe cannot be detectable in our universe. any speculation about other universes must know that there can never be any observable proof to ever support a theory.
 

What is a sub-universe?

A sub-universe is a theoretical concept that suggests there may be more than one universe within a larger multiverse. These sub-universes could have different physical laws, dimensions, and even different forms of matter.

How do scientists explore the possibility of sub-universes?

Scientists use various theoretical models and mathematical equations to study the possibility of sub-universes. They also look for evidence in cosmic microwave background radiation and other sources of radiation to support the existence of sub-universes.

What is the significance of exploring sub-universes?

Exploring sub-universes could help us gain a better understanding of the nature of our own universe and potentially provide insights into fundamental questions about the origin and structure of the multiverse.

Is there any empirical evidence for the existence of sub-universes?

Currently, there is no direct empirical evidence for the existence of sub-universes. However, some theories, such as inflationary cosmology and string theory, suggest the possibility of sub-universes. Additionally, ongoing research and advancements in technology may provide more evidence in the future.

Could sub-universes be connected to our own universe?

It is possible that sub-universes could have some form of connection to our own universe, whether through shared physical laws or through a common origin. However, the exact nature of this connection is still a subject of debate and further research.

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