No Objective Reality?

Discussion in 'Science and Technology' started by tumbling.dice, Mar 16, 2019.

  1. tumbling.dice

    tumbling.dice Visitor

    There is something called the Wigner's Friend Paradox I have only just learned about. Basically you have two people, Wigner and Wigner's friend, and a photon that can be in one of two quantum states. Wigner's friend makes a measurement in a lab to determine the state of the photon while Wigner himself is in a different lab. Once Wigner's friend makes the measurement the photon will assume one of the two possible states. But from Wigner's standpoint the photon is still in a state of superposition and remains that way until Wigner's friend calls him and tells the result of his observation. So when did the photon settle into a definite state, when Wigner's friend made his observation or when Wigner learned the results of the observation? Neither can be regarded as a privileged observer so both of their points of view must be equally valid.

    Anyway, the experiment has just now been performed and, yes, quantum mechanics is right again. Kinda blows my mind.

    A quantum experiment suggests there’s no such thing as objective reality

    Wigner's friend - Wikipedia
     
  2. MeAgain

    MeAgain Dazed & Confused Lifetime Supporter Super Moderator

    Messages:
    19,782
    Likes Received:
    13,801
    But this is on a quantum level.
     
  3. guerillabedlam

    guerillabedlam _|=|-|=|_

    Messages:
    29,419
    Likes Received:
    6,296
    Isn't it paradoxical to claim there is no Objective Reality by testing it with a controlled experiment?


    I feel like if scientists cannot figure out a way to reconcile QM with Relativity and the Macroscopic World in general soonish, they should at least look to start using different language for some of these descriptions.
     
  4. NodalAxis

    NodalAxis Members

    Messages:
    53
    Likes Received:
    21
    Isn't it paradoxically that a particle can be in 2 place's at once to begin with
    Relativity also has not reconciled why Newtonian gravity works
     
  5. tikoo

    tikoo Senior Member

    Messages:
    4,978
    Likes Received:
    487
    What we have so far ? One photon . One conspiracy of consciousnes . Two aspects of Space .
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice