BREAKING: New Phase of Matter

https://www.youtube.com/watch?v=1VPfZ_XzisU

Spin is a real physical property of a system more complex than a simple 2D object.

https://en.wikipedia.org/wiki/Spinor
Note the belts require 720 degree rotation to return to the origin because of mechanical requirements of coupling to the surroundings. 

Eschew all modern explanations of "spin" that are magical nonsense. We don't need magical thinking anymore but we have a ton of it in physics that grew out of control since people stopped listening to Einstein.