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Future Viewing

  1. Jun 30, 2006 #1
    i have heard from many people that although time travel is theoretically impossible that viewing the future isnt and that even einstein who vehemently refused to belive that time travel was impossible that future that viewing was. i then heard that penrose believed it wasnt possible ata ll. is there any solid theory or "proof" that gives rise to this?
  2. jcsd
  3. Jul 1, 2006 #2

    Andrew Mason

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    It depends on what you mean by "future viewing".

    We view the future when it becomes the present. But 'the present' is a relative term. Einstein showed that simultanaeity depends upon the frame of reference of the observer. So two observers in different inertial reference frames will disagree on whether events are in an absolute 'present'.

    Time dilation, which is follows from special relativity, is real. It has been demonstrated by experiment and its effects are frequently observed in particle accelerators. But it is not 'future viewing'. The twin paradox is just asymetrical time dilation.

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