>>16687365
>They don't though? If you a rotate a sphere by 2 pi, you get back the initial position.
>>16687366
>That statement makes zero fucking sense
this illustrates the point that you've been trained to view rotations cylindrically. yes, you can rotate a sphere cylindrically via a 2pi revolution. that isn't what was said. spheres can be rotated by 4pi revolutions. if you need a visual, here
https://www.youtube.com/watch?v=UtdljdoFAwg
if you need technical language, while also having a semi-accessible article, here
https://en.wikipedia.org/wiki/Plate_trick
gatekeeping knowledge with needless jargon is a dick move, btw

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Why does spin on Fermions behave like this. We have empirical prof. Is there any theoretical explanation for it?