Evidence that the key assumption made in discovery of dark energy is in error

Re:Evidence that the key assumption made in discovery of dar... by mcv on Tuesday January 07, 2020 @05:06AM (#21978560)

This makes me wonder whether we would be able to tell the difference between the universe getting larger and matter in the universe getting smaller.

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Re:Evidence that the key assumption made in discovery of dar... by gus_massa on Tuesday January 07, 2020 @05:33AM (#21978709)

Someone has published that idea a few year ago https://news.ycombinator.com/item?id=19588996

I think it's more a mathematical trick than something deep about the universe. If you tweak the change of the universal "constants" correctly in a universe that doesn't expand, it is equivalent to a universe that expands where the "constants" don't change.

Note that there is some research about the change of the universal constant, but in most models they don't have just the rights values to make the universe look like expanding. https://en.wikipedia.org/wiki/Time-variation_of_fundamental_...

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