2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/219631We introduce a simple open-ended model that describes the emergence of a shared vocabulary. The ordering transition toward consensus is generated only by an agreement mechanism. This interaction defines a finite and small number of states, despite each individual having the ability to invent an unlimited number of new words. The existence of a phase transition is studied by analyzing the convergence times, the cognitive efforts of the agents and the scaling behavior in memory and time11 pages, 5 figuresPhysics and SocietyConventions spreading in open-ended systemstext