When I consider the two solutions to how galaxies hold together the name that jumps to my mind isn’t Einstein or Milgrom or Newton, it’s Noether.

Amalie Emmy Noether, who first recognized the symmetries which exist between the various aspects of the universe and it’s fundamental laws of conservation. It is a simple matter to find symmetries between Milgrom’s law which we call Modified gravity and the standard model of physics. On the other hand there is no symmetry between dark matter and any known or understood phenomena in the universe, not neutrinos, not super fluid gas, nothing. That’s one reason it remains such a mystery.

For example when we say gravity is Modified by adding an acceleration factor that’s really an over simplification. What’s happening is the force of gravity in Milgrom’s equations is allowed to transition from an inverse square of the distance between two points to just the square of their distance when those points are very far away from each other. This allows for weaker gravity and thus additional acceleration.

The important point is that the much, much more powerful magnetic field already exhibits precisely this behavior between the near and far field ranges. That power starts at an inverse cube of the distance in the near field, then changes to an inverse square in the far field.

What this would seem to show is the force of gravity is more symmetrical with the electromagnetic force than we thought even if still so much weaker.

This is just one example, there are more. What this does demonstrate is that given it’s better at explaining galaxies and has clear evidence of explicable symmetry with the fundamental physics of the universe we already understand, Milgrom’s law is not likely to be consigned to the dustbin so quickly I suspect.

I think there is yet more to the story to come…