I will explain how the recent developments in so-called categorical or non-invertible symmetries can be used to make sharp predictions about phases -- gapped and gapless -- in the presence of such symmetries. This so-called a categorical Landau paradigm applied to 1+1d systems predicts new phases and phase transitions. In some instances these are extremely simple to implement in spin-chains and have a potential to be implemented in the very near future in cold atom systems