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Thread: Entropy versus the cosmological constant

  1. #1 Entropy versus the cosmological constant 
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    One told me that gravity cannot cause the universe to collapse on itself by the reduction of useable energy caused by entropy. His reason was the cosmological constant will give the proper energy to keep the universe expanding. However, that will only be workable as long as it is assumed that the quantity of the vacuum energy density is the right quantity. We, however, do not even know what the vacuum energy density of our universe is! Thus tell me, if you can prove it, how entropy does not point towards the origin of the universe as a Being who actually commanded it to fall apart, as we all know that this universe had a beginning (as the vacuum fluctuation, chaotic inflationary, and steady state models have been disproven).


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  3. #2  
    Time Lord
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    Partly because entropy would have a hard time explaining how an intelligent being came into existence first, before he even had a universe to live in. Why is the existence of the universe the thing you want to find an explanation for, instead of the (much more remarkable) intelligent being's existence? Are you trying to say that he doesn't need an explanation, but the universe does need one?


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  4. #3  
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    Quote Originally Posted by the old man View Post
    One told me that gravity cannot cause the universe to collapse on itself by the reduction of useable energy caused by entropy. His reason was the cosmological constant will give the proper energy to keep the universe expanding. However, that will only be workable as long as it is assumed that the quantity of the vacuum energy density is the right quantity. We, however, do not even know what the vacuum energy density of our universe is! Thus tell me, if you can prove it, how entropy does not point towards the origin of the universe as a Being who actually commanded it to fall apart, as we all know that this universe had a beginning (as the vacuum fluctuation, chaotic inflationary, and steady state models have been disproven).
    If you have the time try reading " Cycles Of Time " by Roger Penrose, it may answer some of your questions.
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  5. #4  
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    Quote Originally Posted by kojax View Post
    Partly because entropy would have a hard time explaining how an intelligent being came into existence first, before he even had a universe to live in. Why is the existence of the universe the thing you want to find an explanation for, instead of the (much more remarkable) intelligent being's existence? Are you trying to say that he doesn't need an explanation, but the universe does need one?
    Excellant response! Though lt does not answer the question of how the universe starts itself. There does not seem to be an internal mechanism to explain the start, yet we do seem to be at the point of seeing the universe as having a definate starting point.
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  6. #5  
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    Quote Originally Posted by kojax View Post
    Why is the existence of the universe the thing you want to find an explanation for, instead of the (much more remarkable) intelligent being's existence?
    I would say the existence of the Universe is much more "remarkable" than the existence, within that Universe, of intelligent beings.
    Last edited by Halliday; October 12th, 2011 at 11:44 AM.
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