[Dihydrogen Monoxide]

I know spin is weird. Light is plenty weird.

I'm curious if on the road to Quantis (that technological paradise rumored to have existed in the Quantic Ocean) we didn't forget our slide rules back in Athens. Or maybe it was scissors.

What I mean is we haven't tried everything.

Fermions have half spins. They tend to deflect each other whereas bosons go through each other.

Suppose spin isn't something intrinsic at all but a relative concept, yet still related to rotation (or revolution).

I'm thinking about the fact that an electron has to go through two cycles to reach the same state as before. Suppose that an electron "spins" half as fast as the proton it is bound to. That is to say it takes two electron cycles for the electron-proton system to look the same.

I know the textbooks say we are talking about the electron not the proton, however when there's a confounding property that one thing cannot have, then logic requires us to consider a model involving multiple specimens does it not?

I know the proton also has a 1/2 spin, though I don't know to what it would be relative to. Maybe the quarks are spinning.

The thing that gives me hope though is that the Stanley Gerlach experiment is impossible for free electrons. Electrons don't break into bands when they pass through a magnetic field.

Perhaps free electrons don't have spin. The suggests perhaps a relative definition of spin in terms of revolution. Orbital angular momentum is like position and spin like distance between two positions.

It would be interesting to see if this is a fundamental concept that can be extended to classical systems as well.