2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/118471We analyze the scepticism on the hydrodynamic turbulence in Keplerian astrophysical disks expressed in Balbus and Hawley 2006 and show the failure of arguments of the paper.AstrophysicsComments on ``An Exact, Three-Dimensional, Time-Dependent Wave Solution in Local Keplerian Flow'' by Balbus and Hawley (astro-ph/0608429)text