Let’s also not forget Einstein-Cartan theory that takes torsion into consideration and associates it with quantum spin, producing some very satisfying predictio

Let’s also not forget Einstein-Cartan theory that takes torsion into consideration and associates it with quantum spin, producing some very satisfying predictions for general cosmology and might even account for the discrepancy in galactic rotations while not causing disruption on the scales we have tested GR so far. http://iopscience.iop.org/article/10.3847/0004-637X/832/2/96/pdf http://iopscience.iop.org/article/10.3847/0004-637X/832/2/96...