• Cornwell1
    241
    I don't get it. Why can't it exist? What is it in its supposed eternal ticking that makes it impossible to exist?god must be atheist

    The second law of thermodynamics.
  • Down The Rabbit Hole
    517


    Yes, ostensibly a clock that has always been ticking cannot exist.Down The Rabbit Hole

    I don't get it. Why can't it exist? What is it in its supposed eternal ticking that makes it impossible to exist?god must be atheist

    Like Al-Ghazali's orbiting planets, it's not necessarily logically impossible, just counter-intuitive.

    An infinitely ticking stopwatch is a better example - any number it shows would contradict its infinite ticks. Now that's logically impossible?
  • Cornwell1
    241
    Like Al-Ghazali's orbiting planets, it's not necessarily logically impossible, just counter-intuitiveDown The Rabbit Hole

    It's a physical impossibility. The 2nd law of TD requires a beginning in time.
  • Cornwell1
    241
    The alternative is something coming from literally nothing.Down The Rabbit Hole

    The alternative is repeated starts from zero.
  • Down The Rabbit Hole
    517


    The alternative is repeated starts from zero.Cornwell1

    You mean like an infinite series of big bangs?
  • Cornwell1
    241


    Yes. One after another. For example, if the current universe has accelerated away to infinity, that a new one originates behind us. And then again for that one, etc.
  • karl stone
    711
    What seems more far-fetched:
    (1) something from literally nothing
    (2) an infinite past?
    Down The Rabbit Hole

    I usually enjoy a good polling, but this question is a choice between logical absurdities, with no good reason to favour one absurdity over another. I haven't voted yet, so I don't know what the numbers are, but my guess would be about two thirds - something from nothing, and one third, an infinite past. Neither of them make any sense. I don't know what would. The universe is weird. It's like a prison with no bars; we exist, suspended between the infinitely big and the infinitely small, with no 'edge of the map' from which we might imply the nature of existence. It's bizzarre. Forced to choose, on the basis of cosmic expansion, I'll say something from nothing. The Big Bang Theory, but that's not to say I find it satisfying.
  • Down The Rabbit Hole
    517


    Yes. One after another. For example, if the current universe has accelerated away to infinity, that a new one originates behind us. And then again for that one, etc.Cornwell1

    You don't think something more basic such as a quantum field is a better explanation?
  • Down The Rabbit Hole
    517


    I usually enjoy a good polling, but this question is a choice between logical absurdities, with no good reason to favour one absurdity over another. I haven't voted yet, so I don't know what the numbers are, but my guess would be about two thirds - something from nothing, and one third, an infinite past. Neither of them make any sense. I don't know what would. The universe is weird. It's like a prison with no bars; we exist, suspended between the infinitely big and the infinitely small, with no 'edge of the map' from which we might imply the nature of existence. It's bizzarre. Forced to choose, on the basis of cosmic expansion, I'll say something from nothing. The Big Bang Theory, but that's not to say I find it satisfying.karl stone

    You're not impressed by the above arguments about an infinite series of big bangs?

    It does seem absurd that something has existed forever with no explanation.
  • Cornwell1
    241
    You don't think something more basic such as a quantum field is a better explanation?Down The Rabbit Hole

    Quantum fields are exactly the reason I think this will happen.
  • karl stone
    711
    You're not impressed by the above arguments about an infinite series of big bangs? It does seem absurd that something has existed forever with no explanation.Down The Rabbit Hole

    I cannot write anything that makes sense - the idea that the universe 'came into being' seems just as crazy as the idea it exists eternally. I wish it would all just go away! But then what would there be? Nothing? How can there be nothing? How can time not pass? How can space not be space? Even empty space is space! And, if it's not empty - what is it full of? None of it makes sense!
  • Down The Rabbit Hole
    517


    You don't think something more basic such as a quantum field is a better explanation?Down The Rabbit Hole

    Quantum fields are exactly the reason I think this will happen.Cornwell1

    I mean as an explanation for where everything came from (such as Lawrence Krauss proposes).

    The view you expressed of an infinite series of big bangs has no explanation for where it came from. In fact it never came from anywhere, it has always existed.
  • Cornwell1
    241
    mean as an explanation for where everything came from (such as Lawrence Krauss proposes)Down The Rabbit Hole

    Krauss uses QFT and it's implications for the vacuum. He doesn't explain where the singularity itself, with virtual particles only comes from

    The view you expressed of an infinite series of big bangs has no explanation for where it came from. In fact it never came from anywhere, it has always existed.Down The Rabbit Hole

    But it explains the mechanism of subsequent big bangs. There is no physical explanation where the infinity came from. It has been created by an extra mundane power, how else got it there. The power lives outside the domain of space and time, so even when spacetime is eternal and infinite that won't be proof of no divine beings.
  • jgill
    3.6k
    I mean as an explanation for where everything came from (such as Lawrence Krauss proposes)Down The Rabbit Hole

    In Wikipedia he is quoted as saying, "Turtles all the way down" Has he gone beyond this view? I haven't read anything by him.
  • Down The Rabbit Hole
    517


    Krauss uses QFT and it's implications for the vacuum. He doesn't explain where the singularity itself, with virtual particles only comes fromCornwell1

    No, it is proposed as a simple default state. This is different from an infinite series of big bangs, as proposed by Roger Penrose?

    But it explains the mechanism of subsequent big bangs. There is no physical explanation where the infinity came from. It has been created by an extra mundane power, how else got it there. The power lives outside the domain of space and time, so even when spacetime is eternal and infinite that won't be proof of no divine beings.Cornwell1

    Aren't you just pushing the question back, to where the "extra mundane power" came from? If your answer is that it has always existed, surely it would be simpler to just say the series of big bangs have always existed?
  • Cornwell1
    241
    Aren't you just pushing the question back, to where the "extra mundane power" came from? If your answer is that it has always existed, surely it would be simpler to just say the series of big bangs have always existed?Down The Rabbit Hole

    This is where it gets interesting. You might indeed ask where the gods in their turn came from. But they don't exist in the way we or spacetime exist. There is no physical explanation why the universe is there. The only explanation why it displays the features it has can be by a preconceived plan. How can something showing the stuff we figure out by our theories exist on its own? Only creation by intelligent beings can be the cause. Asking where they come from is different from asking where the universe comes from.
  • Down The Rabbit Hole
    517


    I mean as an explanation for where everything came from (such as Lawrence Krauss proposes)Down The Rabbit Hole

    In Wikipedia he is quoted as saying, "Turtles all the way down" Has he gone beyond this view? I haven't read anything by him.jgill

    He says the question of whether there were other universes is "irrelevant". He appears to propose quantum fields as the default state of reality.
  • Cornwell1
    241
    He says the question of whether there were other universes is "irrelevant".Down The Rabbit Hole

    It are those other universes that set the stage surrounding the singularity at the center of the spatially infinite universe. After each bang the singularity is "locked" only to be unlocked when a preceding universe is "over and done".
  • god must be atheist
    5.1k
    It's a physical impossibility. The 2nd law of TD requires a beginning in time.Cornwell1

    No, that is not true. The 2nd law states that thermal entropy can't decrease. But it allows it to stagnate. That's A. B. is that entropy possibly never reaches an end state... it will approach an end state, the amount of heat energy differential between a state and absolute depletion constantly decreasing, but decreasing slower and slower, and that lasting forever.
  • god must be atheist
    5.1k
    Further to my previous post, if you are skeptical about the heat energy not dissipating at all:
    Imagine that the heat energy follows a function of the sort of f(x)=1/(e^x), where x is the total heat energy differential. In this case it has never started, but has gone on forever since infinite past, and it will will never end. In this case, absolute entropy would be represented by f(x)=0, which never happens.
  • Cornwell1
    241


    It can last forever, which our universe does. When all mass has accelerated away to infinity all that will be left is pure potential energy, photons, with no mass. But a beginning is needed and even a prerequisite to give time a direction.
  • Cornwell1
    241
    f(x)=1/(e^x), where x is the total heat energy differentialgod must be atheist

    ?

    What's the heat differential?
  • god must be atheist
    5.1k
    When all mass has accelerated away to infinityCornwell1

    What do you mean? They have become infinitely heavy (full of mass)? Or their speed has become inifinitely large? or they reached a point in a distance far away which you call infinity?

    Your entire claim hinges on this statement "When all mass has accelerated away to infinity" but I see no reason this can happen. Please explain what you mean. More precisely, because to me it makes no sense.
  • god must be atheist
    5.1k
    What's the heat differential?Cornwell1

    You quoted the 2nd Law of TD, and you ask that question?
  • Cornwell1
    241


    Indeed. I can see no heat differential in your function.
  • god must be atheist
    5.1k
    Indeed. I can see no heat differential in your function.Cornwell1

    Thank you. I can't continue this argument until you learn what the 2nd Law of theromdynamics states, and until you learn how to read simple math equations.

    I am sorry, I am not dissing you, and I am not trying to belittle you. I am just saying that if you can't understand my arguments, then there is no point in continuing.

    In the menatime, we can continue on your claim "When all mass has accelerated away to infinity". What do you mean by this? a speed? an increase in mass? or a distance?
  • Cornwell1
    241
    In the menatime, we can continue on your claim "When all mass has accelerated away to infinity". What do you mean by this? a speed? an increase in mass? or a distancegod must be atheist

    All mass in the universe tends towards chaos globally. As we see ordered structure time cannot have existed forever. We would see a state nowadays that will only be seen in the far future. All mass will be evaporated into photons then. Maximum entropy. This state will be the trigger for a new bang at the singularity at the origin. Two new universes will come into being. A new dawn of time. A new life...

    Once all of existence will be nothing more than a timeless and massless memory, diluting into the oblivion on the waves of pure energy rushing into infinity, the sign is given for new life to burst into ull massive existence.
  • god must be atheist
    5.1k
    All mass in the universe tends towards chaos globally. As we see ordered structure time cannot have existed forever. We would see a state nowadays that will only be seen in the far future. All mass will be evaporated into photons then. Maximum entropy. This state will be the trigger for a new bang at the singularity at the origin. Two new universes will come into being. A new dawn of time. A new life...Cornwell1
    This is nice. No denying that. But that is all that it is.
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