if time machine does exist, are we able to travel back before big bang happens.

Discussion in 'Physics' started by Werapon Pat, May 15, 2018.

  1. Werapon Pat

    Thread Starter New Member

    Jan 14, 2018
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    I wonder, does time really exist, before big bang happens.
    which one happens first? time or big bang?
     
  2. joeyd999

    AAC Fanatic!

    Jun 6, 2011
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    If a sphere was a cube, would it have corners?
     
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  3. crutschow

    Expert

    Mar 14, 2008
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    If there is nothing before the big bang, how can there be time?
    Time is a sequence of events.
    Nothing to sequence, no time.
     
  4. dl324

    AAC Fanatic!

    Mar 30, 2015
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    It depends on how you view the big bang. Was the big bang the beginning of everything or was it the result of a previous big bang that contracted and caused another big bang?
     
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  5. -live wire-

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    Dec 22, 2017
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    I mean if there is infinite time and a very large amount of matter and if time travel is possible than it would happen at some point in time. And there had to have been time before the big bang. Just not necessarily anything happening except the POS changing characteristics.
     
  6. jpanhalt

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    Jan 18, 2008
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  7. OBW0549

    Well-Known Member

    Mar 2, 2015
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    Were there politicians before the Big Bang? If not, I want to go there...
     
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  8. profbuxton

    Member

    Feb 21, 2014
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    How can time travel be possible? There is , in my opinion, no way to travel into the past or future, regardless of what Dr. Who says.
    We(the whole universe) can only exist in this instant. You cannot go back or forward even one heartbeat in time.
    All objects in the universe travel relative to each other and I see no way of enabling any object to be in more than one instant of time.
    If one imagines a timeline, objects are at some point on this timeline and one point only. If one could look along this timeline there would be nothing in the future and nothing in the past.
     
  9. joeyd999

    AAC Fanatic!

    Jun 6, 2011
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    Not even Langoliers?
     
  10. nsaspook

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    Aug 27, 2009
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    It might be possible with "superdeterminism" where 'time' is just a 3D illusion to us mere mortals but that also means no 'free will' because all future events are already set in stone with fine tuning of initial conditions by a 'God'.

    http://www.informationphilosopher.com/freedom/superdeterminism.html
    http://backreaction.blogspot.co.at/2013/10/testing-conspiracy-theories.html
    https://blogs.scientificamerican.co...interview-with-nobelist-gerard-e28099t-hooft/
    https://arxiv.org/pdf/quant-ph/0510090.pdf
     
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