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The wave-function of the universe

  1. Aug 18, 2012 #1
    We know the universe is not in a supposition state, so the wave-function of the universe must have collapsed at some point. However, since I am not all that familiar with physics, I wanted to know if this required an observer? If not, then how else could this have happened?
     
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  3. Aug 18, 2012 #2

    ZapperZ

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    Can you describe what is this "wavefunction of the universe" that you seem to have a knowledge of?

    Zz.
     
  4. Aug 18, 2012 #3
    http://en.wikipedia.org/wiki/Universal_wavefunction

    The universe is obviously not is a supposition state, if it was we would not be here. Since wave-functions collapse if there is an observer, then an observer must have collapsed the wave-function of the universe. If not, how else did the wave-function of the universe collapse?
     
  5. Aug 18, 2012 #4

    ZapperZ

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    You should read your own source very carefully. Universal is NOT the same as "universe"!

    Zz.
     
  6. Aug 18, 2012 #5
    Saying "the wave-function of the universe" is the exact same thing as saying "the universal wave-function". According to your logic, universal laws and the laws of the universe are different because they are worded differently. You have presented nothing more than a semantical argument based on a misunderstanding.

    The wave-function of the universe = The universal wave-function.

    Since it takes an observer to collapse a wave-function, then it seems reasonable to assume that an observer collapsed the universal wave-function. If an observer did not collapse the universal wave-function, then what did? The universal wave-function obviously collapsed, or else we wouldn't be here and existence would just be in a quantum state of uncertainty.

    This could all be completely wrong, but I would like to know why it is wrong. So far, you have not answered any of my questions sufficiently.
     
  7. Aug 18, 2012 #6

    ZapperZ

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    Sorry, but I don't think you know what you are talking about. You are making erroneous assumption of something you do not understand. Please reread the PF rules that you had agreed to.

    Zz.
     
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