Vastness of space and infinite universes

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Discussion Overview

The discussion revolves around the concept of parallel universes and the implications of their existence, particularly in relation to the vastness of space and the challenges of proving their existence. Participants explore theoretical aspects, the nature of evidence, and the potential futility of searching for parallel universes.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions the validity of searching for parallel universes, suggesting that if there are infinite universes, many may not contain our galaxy, making physical evidence elusive.
  • Another participant asks for clarification on the show that prompted the discussion, indicating interest in the legitimacy of the original question posed.
  • A participant expresses concern that if the existence of parallel universes is true, it could render searches for them and the concept of time travel futile due to the infinite nature of the multiverse.
  • One participant emphasizes that theories in physics do not "prove" existence and notes the speculative nature of parallel universe theories, suggesting that the topic is not firmly established in physics.

Areas of Agreement / Disagreement

Participants express differing views on the implications of parallel universes, with some questioning the feasibility of proving their existence while others highlight the speculative nature of the concept. The discussion remains unresolved regarding the legitimacy and implications of searching for parallel universes.

Contextual Notes

The discussion reflects a lack of consensus on the definitions and implications of parallel universes, as well as the limitations of current understanding in physics regarding this topic.

bxadook
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I just got done watching this show on tv. I know this will throw some of credibility out of the window automatically but please try to hear me out on this question.

If there are an infinite number of parallel universes, then there are an infinite number of universes where our galaxy was not created. Which surely means any parallel universe could only be proved theoretically, because the vastness of space and infinite universes would mean we would never be able to find one by physical means. If we were looking out, and somehow could see into a different universe, we might see a cloud of particles that used to be our Milky Way, leaving us no evidence if the parallel universe we have spotted contains our galaxy.

If this were the case, why are we chasing after them? And what could we learn from the existence of parallel universes in the first place? I am 19 and i am below a novice in physics, so if this just seems like random babbling it probably is. But if there is anyone who feels like answering and or putting me back in my place with an answer, I will be happy.
 
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bxadook said:
I just got done watching this show on tv.

Which show?
 


I think it is called "parallel universes" on the history channel... what do you think? Do I pose a legitimate question here? If what they say is true, then ultimately all search for a parallel universe is fruitless, and the possibility of time travel is also non-existent due to the sheer grand scale of the amount of universes in an infinite multiverse, making it impossible to locate the specific universe desired to travel to.. I have to reiterate that I am speaking in idiots terms though, I have no grasp of any form of mathematical physics, which proves the existence of these universes.
 
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bxadook said:
.. I have to reiterate that I am speaking in idiots terms though, I have no grasp of any form of mathematical physics, which proves the existence of these universes.

Theories of physics don't "prove the existence" of anything. The idea of parallel universes is also a very speculative one, and there's a lot of confusion surrounding the topic and what a "parallel universe" could mean. It's certainly not an established part of physics, so don't take it too seriously.
 

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