No, you don't need to explain anything. DM falsehood does not depend on any other known thing being correct. It particularly does not depend on MOND being corr

No, you don't need to explain anything. DM falsehood does not depend on any other known thing being correct. It particularly does not depend on MOND being correct. The honest fallback position is not "this other thing is better", it is, "We do not know. We had hoped we did, but were wrong." Then, start entertaining hypotheses that encompass all observations, without prejudice, not just favored ones.