Oh how very very interesting. The whole concept of dark matter has been so intellectually clunky. It reminds me of a book I once discovered in the physics library while trying to avoid studying for a test. It was about all the other physicists - the most famous of their time! - who worked really hard throughout the 1890s to find an explanation for the invariant speed of light. Today all their nonsense looks quite like the concept of Rube Goldberg machines. The same for Dark Matter. TY for noticing this paper!