2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/193128In this note, we test the original holographic dark energy model with some old high redshift objects. The main idea is very simple: the universe cannot be younger than its constituents. We find that the original holographic dark energy model can be ruled out, unless a lower Hubble constant is taken.12 pages, 3 tables, 3 figures, revtex4; v2: accepted for publication in Phys. Rev. D; v3: published versionAstrophysicsGeneral Relativity and Quantum CosmologyHigh Energy Physics - Theorytext