2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/134904A simple proof of a key inequality required by the paper's analysis is presented. An introductory section discussing the paper's setup may be helpful to some readers. An alternative statistical analysis is suggested.9 pages, LaTeX. Version 2: Misspellings of authors' names corrected; text unchangedQuantum Physicstext