  I briefly review the KIDS theoretical framework for the nuclear equation of
state (EoS) and energy density functional (EDF), I discuss recent results for
the curvature parameter of the symmetry energy, and I address the PREX-CREX
puzzle. I show that it is possible to obtain EDF models which can reproduce
both PREX-II and CREX results each within its respective error bars. Such EDFs
correspond to EoSs which soften towards low densities, as could be attributed
to clusterization. Before such a scenario is considered viable, the dipole
polarizability should also be examined.
