[consilient]

> Is that true?

They're not literally thinking those thoughts in those terms, it's just what pops out when you try to translate complaints about "tangibility" and "seeing things directly" from folk-physical intuition into something physically meaningful.

[dogma1138]

I’m not sure I’m following, are you saying that the likes of Milgrom have difficulties articulating their thoughts?

[consilient]

No, I'm just talking about the local commentariat. Milgrom's reasons for holding out (all the other MOND people are MOND + DM people now; the Bullet Cluster was a death blow for pure MOND) are presumably more idiosyncratic.

[dogma1138]

Still doesn’t align with the original assertion that dark matter “deniers” assert that interaction with gravity requires interaction with EM.

Currently I would group the “dark matter” into 3 camps, dark matter as a new form particles, dark matter as a combination of any sort of existing particles and matter e.g. wimps, primordial blackholes, brown dwarfs, cold baryonic matter etc. and dark matter as modified gravity this is MOND and TEVES et al.

None of which as far as I know make a statement around having to have interaction with EM if you are interacting with gravity.