2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/20855Comment on recent claims by Sornette and Zhou: D. Sornette and W. Zhou, Quantitative Finance 2 (6), 468-481 (2002); Evidence of a Worldwide Stock Market Log-Periodic Anti-Bubble Since Mid-2000, cond-mat/0212010; Renormalization Group Analysis of the 2000-2002 anti-bubble in the US SP 500 index, physics/0301023Preprint of comment to be published in J. of Quant. FinanceCondensed Mattertext