The radial acceleration relation and its emergent nature
  We review some of our recent results about the Radial Acceleration Relation
(RAR) and its interpretation as either a fundamental or an emergent law. The
former interpretation is in agreement with a class of modified gravity theories
that dismiss the need for dark matter in galaxies (MOND in particular). Our
most recent analysis, which includes refinements on the priors and the Bayesian
test for compatibility between the posteriors, confirms that the hypothesis of
a fundamental RAR is rejected at more than 5$\sigma$ from the very same data
that was used to infer the RAR.
