MOND and Methodology
arXiv:2208.12890 · doi:10.1007/978-3-030-67036-8_5
Abstract
In Logik der Forschung and later works, Karl Popper proposed a set of methodological rules for scientists. Among these were requirements that theories evolve in the direction of increasing content, and that new theories should only be accepted if some of their novel predictions are experimentally confirmed. There are currently two, viable theories of cosmology: the standard cosmological model, and a theory due to Mordehai Milgrom called MOND. Both theories can point to successes and failures, but only MOND has repeatedly made novel predictions that were subsequently found to be correct. Standard-model cosmologists, by contrast, have almost always responded to new observations in a post-hoc manner, adjusting or augmenting their theory as needed to obtain correspondence with the facts. I argue that these methodological differences render a comparison of the two theories in terms of their "truthlikeness" or "verisimilitude" essentially impossible since the two groups of scientists achieve correspondence with the facts in often very different ways, and I suggest that a better guide to the theories' progress toward truth might be the methodologies themselves.
arXiv commentTo appear in Z. Parusnikova and D. Merritt (eds.), Karl Popper's Science and Philosophy, Springer, Cham
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