Improving Physical Cosmology: An Empiricist's Assessment

Abstract

The $\Lambda$CDM cosmology passes demanding tests that establish it as a good approximation to reality, but it could be improved. I present a list of possibly interesting and less well explored things that might yield hints to a better theory.

Prepared for a lecture at the 2021 Canadian Association of Physicists Congress

References in corpus (4)

• A census of baryons in the Universe from localized fast radio bursts
• CMB-S4 Science Case, Reference Design, and Project Plan
• Dynamics of the Local Group: the Dwarf Galaxies
• Dark Matter in Stars