relativity

[einsteinsdog]

Does relativity imply multiple universes? It looks likely to me in that there are no absolute frames , just an infinite number of relative frames all correct in their own way , but all different. So if its possible to measure the same object , say its mass and get many different answers , all correct , then to be right and consistent are multiple universes necessary ? I hope this makes sense

[fo3nix]

no, it doesn't imply multiple universes. reference frames are quite seperate to the actual universe; you can have many (indeed, infinite) reference frames within one universe. maybe this is how our universe is?

[mibn2cweus]

Reference frames do not exist as such in reality. They exist as tools which enable us to agree with those in different reference frames on the constant velocity of light and the measurement of ones relative perception of time and mass using formulas derived from E=mc^2.