Thursday, November 28, 2019

cosmology - Is Dark Energy A Constant?



My understanding of dark energy is that it's like hot air bouncing around in a balloon, except the air is tiny subatomic particles that can't be seen or even detected in any way except for their apparent effect on the universe's expansion, and the balloon is gravity.


I question whether they can really tell if the universe is expanding faster now than it was a billion years ago, there are so many variables and margins of error, but if it is, wouldn't it slow down later?


The propulsion effect of dark energy would taper off like a rocket running out of steam as it cools down and gets sucked into black holes, and then no matter how far or fast the universe had expanded, over an infinite amount of time, gravity would be all that was left, wouldn't it?


I don't believe in black hole radiation, I don't think anything could ever escape the huge gravity of a massive black hole as everything has gravity, because everything distorts space by it's existence, but even if you believe that the universe ended with nothing but photons flying around, then wouldn't their gravity be the same anyway, and enough to cause the big crunch, the only logical cause for the big bang?




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