2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/126088This paper uncovers a pitfall in the phase transition mechanism of Vicsek et al. [Phys. Rev. Lett. 75, 1226 (1995)] which occurs with fairly high probability and leads to complete breakdown of the model dynamics.1 page, 2 figuresStatistical MechanicsComment on "Novel type of phase transition in a system of self-driven particles"text