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Hints of 'time before Big Bang'

Discussion in 'Science & Technology' started by Knight-Dragon, Jun 9, 2008.

  1. Knight-Dragon

    Knight-Dragon Unhidden Dragon Retired Moderator

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    http://news.bbc.co.uk/2/hi/science/nature/7440217.stm

     
  2. Mise

    Mise isle of lucy

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    Wow, that's quite incredible.
     
  3. Perfection

    Perfection The Great Head.

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    Ugh, I hate BBC science articles, it says there are hints in CMBR flucuations, but doesn't say what those hints are. It's all results with almost no explination how they arrived to them.
     
  4. warpus

    warpus In pork I trust

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    So if this true, this means that our Universe was born inside of another Universe.. and that one was likely to have been born in yet another Universe.

    Does this repeat infinitely, or was there an unmoved mover? ;)
     
  5. Luckymoose

    Luckymoose The World is Mine

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    So there is a possibility of life from before our universe, moving from the old to the new. This could be awesome if those pesky aliens would show up.
     
  6. Veritass

    Veritass Chieftain

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    That will be some interesting math.
    How do you check your figures on that one?
     
  7. Olleus

    Olleus Chieftain

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    I'm confused about "time before the big bang". Wasn't the big bang the start of the three spacial dimensions and the time dimension? If so then time before that makes on sence. Its like saying whats -1m away from a point (without specifying a direction).

    And yes Perfection, I agree that the BBC science articles are of quite a low standard. I find that The Economist write the best ones.
     
  8. warpus

    warpus In pork I trust

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    There could be other dimensions of time, outside of the one that was created during the big bang. (if it was indeed created then)
     
  9. Olleus

    Olleus Chieftain

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    But then it doesn't make sence to say that it is "before" as when we talk about time we always refer to our dimension of time, as its the only we that we experience. It makes no more sence than to say that an object which is to the left of another is behind or infront of it - it isn't - its next to it.
     
  10. Mise

    Mise isle of lucy

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    I think they mean "before" in the causal sense; causes always precede effects, so whatever caused the big bang must have come "before" the big bang. We can think of it as defining (ordinal) time in terms of cause and effect. In this way, we don't need to refer to any specific notion of time at all.
     
  11. TheBladeRoden

    TheBladeRoden Deity

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    If you have enough perspectives, an object can be both next to, in front of, and behind another object simultaneously.
     
  12. Mise

    Mise isle of lucy

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    Yeah. I think a better analogy would be, if you had a small box inside a large box, would the small box be infront or behind the large box.
     
  13. Perfection

    Perfection The Great Head.

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    So how would we determine which universe caused the existance of another?

    In other words, what's causality without time (and entropy)?
     
  14. Souron

    Souron The Dark Lord

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    "a universe could form inside this room and we’d never know" suggests that all of a universe is confined to a finite region of space in it's parent universe. Thus the parent universe can be defined as the one containing the other.

    Though the whole jargon of "multiple universes" seems self contradicting to me.
     
  15. Truronian

    Truronian Quite unfamiliar Retired Moderator

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    I went to an informal lecture about a theory similar to this one last year, I remember the lecturer beleved that any a universe will spawn a new universe once t -> oo, and this new universe will have lower entropy than the last one. I also remember that it sounded like crock, but that might just be because he only had an hour and a half to present his theory.
     
  16. Perfection

    Perfection The Great Head.

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    I wonder if any of this is testible stuff, or just that this guy figured out some math that would allow it.
     
  17. TheDS

    TheDS Regular Riot

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    Time is what keeps everything from happening at once.
     
  18. warpus

    warpus In pork I trust

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    And let me guess, all those universes are spawned within black holes, and universes with more stable black holes in them are selected for using a process similar to natural selection?

    Yeah, I heard that on a street corner once.
     
  19. Truronian

    Truronian Quite unfamiliar Retired Moderator

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    No, although I've heard stuff like that too. The guy that proposed this is pretty famous (Roger Penrose), though I've heard nothing about it since. It was probably just wrong.
     
  20. Valka D'Ur

    Valka D'Ur Hosting Iron Pen in A&E Retired Moderator

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    I read a science fiction story about some people who created a miniature invisible universe in their science lab. It came as a great shock to them to realize they themselves were probably an invisible universe in somebody else's lab.

    I reject the notion that "it's elephants all the way down." Saying we came from another universe only brings the question of The Beginning to one more step -- where did this other universe come from?

    I have a button that says this, but it adds some material:

    Time is nature's way of keeping
    everything from happening at once.
    It doesn't seem to be working lately.​
     

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