Although most of cosmologists believe that we live in a Λ𝐶𝐷𝑀 Universe, the phenomenon of the Dark Matter continues to baffle the researchers: the underlying dark particle has escaped, so far, the detection and its astrophysical role appears to be very complex and entangled with that of the standard luminous particles. As an example, in disc systems, there is a number of well known scaling laws, connecting among them the structural properties of the dark and the luminous matter, that are too complex to be arisen in a scenario in which these two mass components do not “talk” to each other but just share the same gravitational field. We propose that, in order to proceed efficiently, alongside with abandoning the current Λ𝐶𝐷𝑀 scenario, we need also to shift the Paradigm from which such scenario has emerged.
Then, we advocate for a Paradigm, according to which, we are poised to search for DM scenarios without requiring that: (a) they naturally come from (known) “first principles” (b) they obey to the Occam razor idea (c) they have the bonus to lead us towards the solution of presently open big issues of fundamental Physics. On the other side, the proper search shall: (i) give precedence to observations and to the experimental results, wherever these may lead us (ii) consider the possibility that the Physics behind the Dark Matter phenomenon be disconnected from the Physics we know and and that, furthermore, iii) the actual scenario does not comply with the usual canons of beauty.
An immediate application of this paradigm leads us to a Scenario featuring a direct interaction between Dark and Standard Model particles that has finely shaped the inner regions of galaxies.