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Bill69
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It is my understanding that most cosmologists prefer to describe our universe in terms of space-time as opposed to simply time alone or space alone (or in discrete combination). Why is it then that when we observe a red shift in distant galaxies or stars, we describe this to a physical expansion of the universe and/or an acceleration of these objects in space as opposed to describing the red shift in terms of time slowing down in the realm of either time or space-time. If you think about it carefully you can see that the observed cosmological red shift could easily be described as, not an expansion or an increase in acceleration of the object in space, but instead as evidence of a slowing in time at the fringes of our universe with little or no physical expansion of the universe. Has anyone investigated this and are there papers that either support or refute this idea?