Peter,
There are some parallels in our thinking but we use different language. Your concept that relative motion is fundamental requires time. I agree with your statement that fermions require spin. In my essay, spin is motion in one direction opposed by a field representing the opposite direction. It takes both to have relative motion. I spent a lot of time with the PDG meson and baryon data and didn't expect that properties would balance to zero but I think it is important. Your illustrations on the ball remind me of parity. The simple rotation (looking down vs looking up) super-imposes two results for the same object.
But what separated directions so that we can have relative motion? As I mentioned, I use P=exp(iEt/H)*exp(-iEt/H) based on the MIT reference (search MIT22 Evolution of Function Chapter 6). My neutron model finds the E's in the equation, t is time around a circle and H is Planck's unreduced constant. I placed an excerpt from the proton model below. The values of E that satisfy P=1 are 13.797, 5.076, 101.947 and 0.687 MeV. For example 5.076 MeV comes from the equation E-2.02e-5*exp(12.432).
There are 4 E's, and P=1=psi*psi*psi*psi=exp(13.797it/H)*exp(5.076it/H)*exp(-101.947it/H)*exp(-0.687it/H). The imaginary numbers multiply out and each Et/H=1. The equation also represents energy zero. (13.8+88.15=101.95+0.687 (MeV)). I believe that probability 1, energy zero was an initial condition but I can't escape association with collapse of a wave function and consciousness. It seems to me that consciousness is the intersection of P=psi*psi*psic*psic=1. This is a busy intersection as consciousness develops since fermions make things we recognize. The "quantum circles" probably represent a plenum of information from which we develop an internal model of the things around us. The P evolves and separates nature into many possible concepts.
Do you have thoughts about what "sees" the relative motion?