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Every theory is a retrofit. A useful theory is also predictive.


MOND has its share of failed predictions. It also still requires a certain amount of DM to work.

This is fine for work in progress that all frontier science is but the issue is far from settled.


MOND is not compatible with some observations. It and dark will probably be tweaked until both agree with observations. At that point they will be the same.


That's a false equivalence. MOND has made several predictions before they were observed (external field effect, linear Tully fisher relationship, early galaxies). I think LCDM's made fewer if any predictions.




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