Ok, I'm going to stop there (Part V) with the introduction. I've tried to show how the Reciprocal System, by defining motion with a new interpretation of the nature of space and time, provides an absolute reference for reckoning motion that is impossible to attain with the Newtonian interpretation of the nature of space and time. In providing this new, dynamical, reference system of motion, the Reciprocal System happens to fit the description of what is wanted in the world of modern theoretical physics, both from the point of view of eliminating the background structure of space and time, and from the point of view of discovering nature's "fundamental" symmetry.

In short, we may say that , now, the game has changed. In the Newtonian system of physical theory, which I'm going to presumptiously refer to as the legacy system of physical theory (LST), for brevity's sake, everything is based on the function x(t), given Newton's laws of vectorial motion. In the Reciprocal System of physical theory (RST), everything is based on the function x(t), and a new function, t(x), given the new interpretation of the nature of space/time, as the two reciprocal aspects of scalar motion.

More on this later.