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What we perceive as time is an entropy gradient caused by the expansion of the universe (fedinsfw.app)
submitted 4 months ago by to c/showerthoughts@lemmy.world
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[–] 5 points 4 months ago (2 children)

So then when the expansion slows and the universe starts contracting (again?), will time then reverse as entropy reverses?

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  • [–] 1 point 4 months ago (1 child)

    Except it doesn't seem like it will ever contract. If universe were to stop or contract, it would collapse into black hole

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  • [–] 1 point 4 months ago (1 child)

    The moment before the big bang, the universe was a singularity similar to a black hole though. In fact, our universe shares several properties with black holes (mass/energy can never escape it, for example)

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  • [–] 1 point 4 months ago*

    It's more akin to a white hole. With accelerating expansion It seems everything will escape eventually.

    And then 'accidentally' observable universe is just slightly below Schweidshield radius which would collapse it back into regular black hole. Seems like a very peculiar coincidence.

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