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Could the expanding Universe truly be a mirage? (bigthink.com)

submitted 1 year ago by SpacemanSpiff@kbin.social to c/science@kbin.social

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A cute mathematical trick can "rescale" the Universe so that it isn't actually expanding. But can that "trick" survive all our cosmic tests?

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[–] _ParallaxMax_@kbin.social 4 points 1 year ago* (last edited 1 year ago)

This struck me too, if you're relying on instruments that exist in a universe where its constants are changing to measure those constants, then it seems very natural to me that your measurements would not necessarily change.
The constants instruments use to measure other constants might change at the same rate, leaving measurement results constant.

Then again, I'm not a physicist, so I'm nowhere near an expert.