2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/141929We critically examine the evidence for the idea that encephalization quotients increase with time. We find that human-like intelligence is not a convergent feature of evolution. Implications for the search for extraterrestrial intelligence are discussed.14 pages, 6 figures, to be published in "From Fossils to Astrobiology" Edt J. Seckbach and M. Walsh, Springer 2008Populations and Evolutiontext