Let's consider freezing time and plotting all the information in a 3d space, with an imaginary (not related to complex numbers) fixed metric. For this we need a reference frame. In this coordinate system we will have all the information about the universe. Then we go plot the next snapshot of the universe , in which we get the slightest change possible from the previous snapshot . We can imagine storing these snapshot as they are. Then once every a certain number (can be infinite) of snapshots we can define fixed intervals that correspond to time, intervals. These fixed intervals can be treated as absolute time intervals. This way, time would be an absolute dimension. If we go to different frame of reference and do the same thing , will we find a different number of snapshots ? If yes, it means that the frame in which we got a lower number of snapshots was not able to describe the universe. We can find a reference frame that gives us the highest number of snapshots. This frame would be absolute, and all other frames will have less information. This frame if reference, I understand would not possible to be found since the real metric space expansion should be infinite. Does this make sense ?