2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/137737In a recently archived paper by Zhang\cite{Zhang}, it is claimed that before turnaround in a cyclic model two unexpected events happen: (1) black holes cease to contract and begin to expand; (2) separated causal patches start to reconnect. We show that both conclusions are erroneous and result from the author's choice of variables.3 pages latexGeneral Relativity and Quantum Cosmologytext