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I, FYI not a physicist, recently got a fascination to dimensions, and for the life in me I cant seem to wrap my head around the fact that time is the 4th dimension.

From what I can understand, the spatial dimensions can completely perceive the dimension below, but perceive an object in the high dimension in a form comprehensible in their dimension. So far so good, that is until we get to time a.k.a 4D. Now for any changes to occur to any object in any of the dimensions, then time is paramount. For example, when tracking a point, it correct to say that it was at point x,y at time t. While observing a 3D object in motion, I believe it correct to say that it's at x,y,z at time t?

Why is the 4th Dimension, time, present in the lower dimensions? The only conclusions that I can make is that time is independent or that time comes way way before, i.e. Time is the 1st dimension. In the beginning was time, then space came later. For any object in any of the spatial dimensions to comprehend changes in their dimensional environment, then time is there.

So shouldn't time be the 1st dimension? Or am i understanding dimensions the wrong way? Thanx