Schwarzer, “The Universe’s Half-Spin Deception Game”, to be published, Amazon Digital Services, ASIN: B0BXPKWPQZ, 2023, Kindle Schwarzer, “Towards the Metric Quark - Derivation of More Spin-1/2-Objects from the Einstein-Hilbert Action”, Self-published, Amazon Digital Services, B0BWDQDBFW, 2023, Kindle So, the question should be asked whether such new concepts will help in getting a more fundamental understanding in some of those applications mentioned above and if yes, can the methods be used to optimize such apps and the products behind? The moment, however, one does apply quantum gravity methods (well, in fact it is just an extend Einstein-Hilbert action) one suddenly finds that these problems disappear (see abstract of below and the brand-new paper )).
There are quite some difficulties with the half spin concept, namely, whereby the fact that objects having such spin require a 720° rotation after they are back to their original state is just one of them.
In material science there are so many applications having to do with spin, especially the ominous quantum spin ½, that we thought it cannot help to have a somewhat more fundamental look at the problem.
