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Time traveling is no good?

  1. Jan 26, 2012 #1
    Because the universe is inherently not-detirministic by the very nature of atoms themselves, if we went back in time, wouldn't there have to be a chance of atoms occupying different 3 dimensional coordinates even if they are occupying the same 4 dimensional coordinates that they once occupied, and thus even by going back in time won't necessarily change the future in way it should?
  2. jcsd
  3. Jan 26, 2012 #2
    possibly. You might also quantum tunnel, by chance, to my house right now.

    There is also the likihood that nothing is there in the 'past' , or maybe it's static, or that it is now in another universe. It depends on which theory you'd like to consider.

    Unfortunately quantum mechanics, which IS non deterministic, I don't think tells us much about the nature of time, and relativity, which does explain some aspects of time IS deterministic. And relativity assumes space is continuous while QM doesn't.
    Last edited: Jan 26, 2012
  4. Jan 26, 2012 #3


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    QM assumes a continuous background on which to operate. In particular, the position operator has a continuous set of eigenvalues. Only theories like loop quantum gravity try to quantize the space-time.
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