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Cogito ergo sum

Here in the Philosophy forum we will talk about all the "why" questions. We'll have conversations about the way in which philosophy and theology and religion interact with each other. Metaphysics, ontology, origins, truth? They're all fair game so jump right in and have some fun! But remember...play nice!

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Is time physical?

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  • seer
    replied
    Originally posted by Sparko View Post

    The energy doesn't have 'enough time' to dissipate in one moment. This is no different than in A-theory if you could freeze time. Nothing would be happening during that frozen moment. But the potential is still there, the energy is still there.
    Right and the energy in that moment goes on forever. So again, in the same Block universe all suns die and all suns don't die.

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  • Sparko
    replied
    Originally posted by seer View Post

    But energy can dissipate and become unusable. That is entropy. So in our moment, our sun never experiences entropy. So all stars will experience and not experience entropy.
    You seem to conveniently use time when it suits you and ignore it when it doesn't. The entropy occurs over time, but we are talking about a single moment here. The energy doesn't have 'enough time' to dissipate in one moment. This is no different than in A-theory if you could freeze time. Nothing would be happening during that frozen moment. But the potential is still there, the energy is still there.

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  • seer
    replied
    Originally posted by Sparko View Post

    Actually energy can't be created or destroyed, it can only be converted between forms and matter. That is why the light from the big bang is still hanging around as the CMBR. That's true even in the A theory.
    But energy can dissipate and become unusable. That is entropy. So in our moment, our sun never experiences entropy. So all stars will experience and not experience entropy.

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  • Sparko
    replied
    Originally posted by seer View Post

    So that stored energy will last forever?



    It certainly is a contradiction to say that all stars are dead and all stars are not dead - in the same universe.
    Actually energy can't be created or destroyed, it can only be converted between forms and matter. That is why the light from the big bang is still hanging around as the CMBR. That's true even in the A theory.

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  • seer
    replied
    Originally posted by Sparko View Post

    There is stored energy in each moment of time. Such as angular momentum, energy level (heat, temperature), etc. The real world time slice is not a photograph, but a slice of a 3D universe at a moment in time. The energy just isn't changing in that moment. Only from one moment to the next.
    So that stored energy will last forever?

    The block universe exists "all at once" when viewed from the outside. That is not a contradiction. Any more than in my gif file, all dots and circles exist "at once" when viewed in an editor. Your objection is nonsense.
    It certainly is a contradiction to say that all stars are dead and all stars are not dead - in the same universe.

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