Despite its name, "spin" does not refer to a possible "rotating motion". It refers to the magnetic polarity of elementary particles.
It becomes meaningful only relatively, like the polarity of magnets at our macroscopic level.
when 2 elementary particles are interacting, either they are aligned magnetically parallel to each other or anti-parallel to each other.
When in parallel alignment, they magnetically repel each other, like two magnets that you would try to associate with their north poles on the same side or their south poles on the same side.
when 2 elementary particles are in antiparallel alignment, then they magnetically attract, like two magnets that you associate with the north pole of one on the same side as the south pole of the other.
Now as to polarity reversal, this could be possible if the magnetic poles of elementary particles were present one at a time, that is, if their energy oscillates between increasing presence and decreasing presence at the particle's energy frequency.
There even is an easily carried out lab experiment that you could carry out yourself and that proves this possibility. The complete details of the experiment are in the paper attached.
If you carry out the experiment, you will then be able to confirm yourself this possiblity on ResearchGate
Article On The Magnetostatic Inverse Cube Law and Magnetic Monopoles...
Kimmo Rouvari elaborou um trabalho muito interessante, chamado "Theory of Everything by Ilusion" que acredito ser muito interessante para discutirmos neste tópico.