> The number of free variables has gone down dramatically due to extensive theoretical and experimental work. The number of free variables in MOND is one, visi

> The number of free variables has gone down dramatically due to extensive theoretical and experimental work. The number of free variables in MOND is one, visible mass, and it's surprising the number of observations it matches despite that. There is almost certainly something there. The superfluid dark matter idea that incorporated both was a promising unifying idea, but last I checked the proposed models didn't match some observations.