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A Addresses of Parallel Universes

  1. Oct 20, 2015 #1
    Hi there! Alright, so let me start off by saying I'm a biochemist by trade, but have an extreme (and possibly unhealthy) interest in the more bizarre aspects of modern physics. Admittedly, I don't understand the mathematical formalisms associated with the theories I know of, so bear with me if I sound a bit daft.

    I've been interested for quite some time in the Many Worlds Interpretation (MWI) of quantum mechanics first formulated by Hugh Everett, and have now recently become interested in a variation of it called Many Interacting Worlds (MIW). The paper proposing it can be found here. Particularly, my interest lies in whether visiting those parallel universes is theoretically achievable. I'm also intrigued by the work of Mohammed Mansouryar, an Iranian physicist who has proposed a real-life method of opening a traversable wormhole.

    However, it was recently suggested that there are 10160 observably distinguishable universes in the multiverse. Whether or not we accept this value, I think we can all agree that the number of parallel worlds is very large.

    Mansouryar, as well as a few others, have proposed ways to actually open a wormhole to a parallel world. But this begs the question of, which world does a given wormhole lead to? And so that gives rise to my ultimate question of whether there are distinctive "addresses" that define the physical relative locations of various universes floating through hyperspace. If such addresses exist, what do they consist of? Are there theoretical ways to "tune" the opening of a wormhole to access a particular one? And can the address of this universe be recorded so as to enable a return journey?

    Looking forward to seeing how this discussion evolves.
     
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  3. Oct 20, 2015 #2

    phinds

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    Well, no, actually we can't. There are a lot of us that think the MWI has no basis in reality and who therefor think the number of parallel universes is zero.
     
  4. Oct 20, 2015 #3
    Respectfully, this discussion is meant to exist under the premise that we accept MWI as being representative of physical reality.
     
  5. Oct 20, 2015 #4

    phinds

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    Not trying to start a fight here. I'm just saying that if you start off with a false premise you can arrived at any conclusion you like. I'll shut up now. (Maybe :smile:)
     
  6. Oct 20, 2015 #5
    That's true! But there are many that believe MWI does have a basis in physical reality. So we don't have a conclusive idea on whether the premise is true or false... thus classifying this as a thought experiment of sorts.

    Okay, so to other members - want to chime in? :)
     
  7. Oct 20, 2015 #6

    bhobba

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    The answer to your query is far too speculative at our stage of knowledge where we dont even know if such exist.

    BTW that large number of worlds you mention is from theories other than MW eg eternal inflation. In MW the number of worlds is growing exponentially and while quite possibly finite is for all intent and purposes infinite.

    Thanks
    Bill
     
  8. Oct 20, 2015 #7
    Fair enough; if you were to speculate, what would you say?

    Interesting, thanks for the clarification! Didn't notice that.

    Anybody else?
     
  9. Oct 21, 2015 #8

    bhobba

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    We don't even know enough for speculation of any type.

    Thanks
    Bill
     
  10. Oct 21, 2015 #9
    Any type?!? What about wild speculation?


    In all honesty though, your questions is sort of like a 7 year old asking, "Will I have a son or a daughter? If it is a daughter, when will she be born? If she is born in July, what will her college roommate's name be?"
    The biggest difference between these questions and yours is that we have infinitely more data to make an educated guess about this question. In this case, even though I don't know what will happen, I can give probabilities by comparing to past events.

    Maybe it would be better to think of it as asking a Neanderthal what is the average number of moons orbiting an exoplanet in our universe. Of course, for this analogy to make sense, parallel universes must exist... which might not even be true.

    I don't want to be too much of a downer, but there is probably nobody that can give an informed answer to your questions. Furthermore, there may not be anyone in your lifetime that can give an informed answer. The good news is that I could be wrong and tomorrow somebody might publish a paper or make a discovery that leads to an answer.
     
  11. Oct 21, 2015 #10
    Hollywood already did that, several times.
    In reality there is no observation of this happening even once, not even with assistance of aliens.
    Parallel worlds can exist as mathematical constructs, but that doesn't mean they really do exist.

    Can you own -2 cows?, yes mathematically but -2 cows won't produce a lot of milk.
     
  12. Oct 26, 2015 #11
    Parallel universes are only potential universes!
    Had John Smith gone that way instead of this, such and such would have happened.
    But as he didn´t, it must have happened in a parallel universe.

    Who says that everything that is conceivable MUST also be real?
    That would mean that our universe is indeed infinite (not in space, nor in time, but in parallelity).

    It would all have started at the big bang... but, would there only be ONE ending... or an infinity of endings?
     
  13. Oct 26, 2015 #12

    PeterDonis

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    Thread closed for moderation.
     
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