2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/64419We prove that any generic (i.e., possibly aperiodic) Lorenz gas in two dimensions, with finite horizon and non-degenerate geometrical features, is ergodic if it is recurrent. We also give examples of aperiodic recurrent gases.17 pages, 3 figuresDynamical SystemsMathematical PhysicsChaotic Dynamics37D50; 37A40text