2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/98422We discuss whether an appropriately defined dimensionless scalar function might be an acceptable candidate for the gravitational entropy, by explicitly considering Szekeres and Bianchi type VI$_{h}$ models that admit an isotropic singularity. We also briefly discuss other possible gravitational entropy functions, including an appropriate measure of the velocity dependent Bel-Robinson tensor.6 pages, revtexGeneral Relativity and Quantum Cosmologytext