MOND theories etc. like this has fallen kind of out of favor because it’s just so hard to adapt our theory of gravity to resolve this. It’s surprising how ofte

MOND theories etc. like this has fallen kind of out of favor because it’s just so hard to adapt our theory of gravity to resolve this. It’s surprising how often this topic pops up. I think it’s based on a misjudgment that simply missing something in gravity follows Occams Razor better but it actually seems to be the opposite. I think the killer is that dark matter seems to not just hold galaxies together (given their “too high” rotational speeds), but also clump together, and also sometimes be missing in galaxies and other times overwhelm galaxies. It’s super hard to adapt the well proven theory of gravity to especially localized phenomena.