2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/148539Recently, J. P. Leahy commented (astro-ph/9704285) on the indication of anisotropy in the propagation of radio waves over cosmological distances, published by Nodland and Ralston (B. Nodland and J. P. Ralston, Phys. Rev. Lett. 78, 3043 (1997); astro-ph/9704196). Unfortunately, Leahy ignores the need for a statistical comparison, egregiously selects data, compares incompatible measures, uses a variable incapable of resolving birefringence, and makes mistakes in the calculations he presents.3 pages, ReVTeX. Submitted to Physical Review Letters. More information is available at http://www.cc.rochester.edu/college/rtc/Borge/aniso.htmlAstrophysicsHigh Energy Physics - Phenomenologytext