2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/198058In the context of modified gravity, we point out how the Palatini version of these theories is singled out as a very special case corresponding to the unique fixed point of a transformation involving a special conformal rescaling of the metric. This mathematical peculiarity signals deeply rooted problems which make the theory unphysical.9 pages, LaTeX, to appear in Phys. Lett. BGeneral Relativity and Quantum CosmologyAstrophysicsHigh Energy Physics - Theorytext