Uhm, I’m a fan of the ol’ Schrodinger’s Cat thought experiment, more so than probably the next guy . . . but . . . the folks taking it to the next level as an experiment that violently proves or disproves the existence of the multiverse are missing a few marbles on this thing.
The Quantum Suicide experiment is an obvious variation on the Schrodinger’s Cat concept in which we stick a cat in a box with a death machine that releases poisonous gas when a radioactive isotope randomly decays. As long as the box is closed we have no way of knowing if the cat is alive or dead and therefore – in relation to us – it is both alive and dead and we are simultaneously existing within a flux university where the cat is both alive and dead. Once we open the box then our universal experience solidifies and possibly two nearly identical universes are then created – one in which the cat is alive and one in which it is dead.
Take that further with Quantum Suicide and we put our experimenter into the box and set up a gun to blow his brains out . . . however, he continually shifts existence.
Problem with that, multiverses may not be as malleable as the experiment assumes and we’re just infinitely killing off ourselves and our identity does not shift as once a multiversal copy is created it’s independant. Think all the dead copies of Hugh Jackman in The Presige.
Sure, the experiment might prove the multiverse exists . . . I doubt it. I’ve absolute faith in at least one variation of the multiverse theory holding true but the suicide box ain’t the best way to approach it.
See http://io9.com/5891740/quantum-suicide-how-to-prove-the-multiverse-exists-in-the-most-violent-way-possible for a fuller explanation of the suicide box. It is, of course, merely a thought experiment and no one is seriously considering implementing it . . . as far as I know.
Of course, multiversal models make nice trance metaphors even if we can’t – yet – travel between worlds.
All the best,