What is a parallel universe and how does it relate to physics?

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    Parallel Universe
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Discussion Overview

The discussion revolves around the concept of parallel universes and their relation to physics. Participants explore the origins of the idea, its implications in quantum physics and string theory, and the validity of the concept within scientific discourse.

Discussion Character

  • Debate/contested, Conceptual clarification

Main Points Raised

  • Some participants question the validity of the concept of parallel universes, suggesting it lacks a basis in physics.
  • Others reference the 'many worlds' interpretation of quantum mechanics as a foundation for the idea, noting that all possible outcomes of quantum events occur, but only one is observable.
  • A participant emphasizes the unconfirmable nature of parallel universes by current scientific tests, arguing it has little scientific merit.
  • There is a suggestion that the original question posed was too broad and lacked specificity, leading to frustration among participants.
  • Some participants recommend using external sources like Wikipedia for a general overview of the topic, indicating a perceived lack of depth in the original inquiry.

Areas of Agreement / Disagreement

Participants express disagreement regarding the validity and scientific merit of the concept of parallel universes. There is no consensus on the topic, with varying perspectives on its relevance and basis in physics.

Contextual Notes

The discussion highlights limitations in the original question's specificity and the varying interpretations of what constitutes a parallel universe within different scientific frameworks.

VaibhavP
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What is parallel universe?
 
Space news on Phys.org
It is a nonsensical concept that has no basis in physics

EDIT: if you do not know how to use GOOGLE, you really should learn.
 
VaibhavP said:
What is parallel universe?

Physics Forums is a great place to answer specific questions, however if you wish to know the general overview of a subject then your best bet would be to hit up Wikipedia or another source of information. Imagine if someone kept asking you "What is X" when they had an encyclopedia right there next to them!
 
Parallel universes is a concept that originated in quantum physics, then reemerged in string theory. The basic idea is built on the 'many worlds' interpretation, where all possible outcomes of a quantum event must occur. The observational issue is we can confirm only a single outcome. That renders it unconfirmable by any known test, hence, it has little scientific merit.
 
friends first and second replies was expected...
the thing is, if I would have not know how to use google then probably I would have not physics forum and what parallel universe...so don't tell me that...anyway I was asking some specific things...
 
VaibhavP said:
friends first and second replies was expected...
the thing is, if I would have not know how to use google then probably I would have not physics forum and what parallel universe...so don't tell me that...anyway I was asking some specific things...

No you weren't. You asked nothing specific at all. Even your original question is too broad, as there are several possibilities on what you could be asking about. Searching for parallel universe on wikipedia brings up the following page: http://en.wikipedia.org/wiki/Parallel_universe

As you can see there are two options under Science and several in other areas. I recommend figuring out which one you are asking about and reading the relevant article on wiki.
 

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