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Many Lives in Many Worlds

• _AllisonMobley 11y ago
  That text is impossible to read for me. It's all light grey on white and patchy.
  • jimhefferon 11y ago
    Reads fine for me (Firefox under Ubuntu).
  • moonfern 11y ago
    If your browser support the no page style you can use that. But what you see, is perhaps the effects of popup. It's on the lower right side, maybe pressing escape works. (it does on linux.
• Houshalter 11y ago
  Truly a terrifying hypothesis. Dearly hope it is not true.
  • Moshe_Silnorin 11y ago
    As it predicts quantum immortality we will all find out if we wait long enough:https://en.m.wikipedia.org/wiki/Quantum_suicide_and_immortality https://en.m.wikipedia.org/wiki/Quantum_suicide_and_immortal...
• Xcelerate 11y ago
  The interpretation I prefer: the universal quantum state evolves unitarily at all times, and there are no parallel universes. Problem solved. Parallel universes are — by definition — unfalsifiable, so the best theory then is the simplest one, and that is a theory with one universe. For similar reasoning used in a somewhat different scenario, see also http://plato.stanford.edu/entries/spacetime-holearg/ http://plato.stanford.edu/entries/spacetime-holearg/
  • hammock 11y ago
    >the universal quantum state evolves unitarily at all times What does that mean in layman's terms? Is that basically the Copenhagen interpretation (which has its own issues)
  • ikeboy 11y ago
    It's not so obvious that a single universe is simpler. See http://space.mit.edu/home/tegmark/PDF/multiverse_sciam.pdf http://space.mit.edu/home/tegmark/PDF/multiverse_sciam.pdf and the excerpt quoted in https://en.wikipedia.org/wiki/Multiverse#Occam.27s_Razor https://en.wikipedia.org/wiki/Multiverse#Occam.27s_Razor
  • pjdorrell 11y ago
    In the context of Many Worlds, a "universe" is an approximately classical wave function, where the degree of approximation is limited by the uncertainty principle. Even if you start with an approximately classical wave function, it may evolve into a state where it is no longer approximately classical. However, it might now be equal to the sum of _two_ approximately classical wave functions. Ie, two "universes". So, the universal wave function hasn't split, but the attempt to represent that wave function by approximately classical wave functions _has_ split.
    • Xcelerate 11y ago
      > but the attempt to represent that wave function by approximately classical wave functions _has_ split. Exactly. The problem is that people keep trying to view quantum physics through a classical lens. Decoherence is simply the fact that a quantum state evolves to a point where it can no longer be mathematically represented as a tensor product state. I don't lose any sleep over that.
• ZeroGravitas 11y ago
  There's a BBC documentary about this, also created for the 50th anniversary, starring his son, who happens to be a semi-famous singer-songwriter with the band Eels: http://eelstheband.com/parallel_worlds.php http://eelstheband.com/parallel_worlds.php It's available in full on Vimeo and embedded at the bottom of the above page.
• ommunist 11y ago
  Ehm. Did someone picked a photo at parallel universe? Never heard of such an event.