A completely new way of thinking about time.
Our universe exists in a 2 dimensional matrix which we call space-time. It consists of a spatial dimension, interlinked with a temporal dimension. The word 'time' is a term describing temporal motion. So we 'move' through the spatial dimension and we 'time' through the temporal dimension.
Motion through the spatial dimension is measured in inches, meters, kilometers, light years, etc. Motion through the temporal dimension is measured in seconds, hours, days, years, etc. The speed at which we time through the temporal dimension is called our temporal velocity.
We only time in one direction. Towards the future. So the future is a temporal location, towards which we 'time'. The past is a temporal location which we have already occupied.
Because the two dimensions are interlinked, our spatial velocity is inversely proportional to our temporal velocity. The faster we move, the slower we time. Timing, however, is not just for humans. Everything in the universe, besides mass less particles, times.
To us it feels as though time is something that passes, but it's like seeing trees pass the window of a moving train. It's our temporal motion which causes the illusion of time passing. You can think of a clock as a temporal odometer. It measures how far we time. So tape measures measure spatial distances and clocks measure temporal distances.
Velocity is the relationship between moving and timing.
This is a work in progress, but feel free to comment.
You specifically call it a "temporal dimension".
This further reads to me like you are exactly describing it as a dimension. If you mean something else you are not conveying it to me (and I doubt this is me being thick since I studied at least enough physics to be able to publish on quantum information theory). That last paragraph I quoted especially sounds like you are gesturing at relativity, a theory worked out over 100 years ago, which is why I asked what about your model is different, because I read your post and I can't tell.