Twisting spacetime, or Einstein’s forgotten theory that can help solve four physics mysteries at once? A theory in which mass not only curves space-time but also twists it may explain several cosmic puzzles at once. Whether it is true, however, is unknown. To prove it, one would have to undermine the old and well-tested general theory of relativity.

https://medium.com/@darkenergyarticles/twisting-spacetime-or-einsteins-forgotten-theory-that-can-help-solve-four-physics-mysteries-at-21076e5a2ed1