It allows frames of reference to scale ..we know it is doing this because the speed of light is the same in time dilation zones. It makes cosmic voids expand. It makes black holes contract. It gives an answer to the big bang. Don't come at me with Macroscopic ..this extra dimension is bigger than everything else.
Who said anything about "macroscopic" dimensions? The fabric of spacetime is Four dimensions of space and One dimension of time. We are 3D spacetime objects living inside it.
Yes, Time is a dimension ..that's not what this thread is about. Watch the video. If spacetime is 4D + Time ..we only see the parts that are 3D.
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