In 2005 year I and my son as co-authors published the book on Russian language "Why our civilisation is doomed (Почему должна погибнуть наша цивилизация, Санкт-Петербург, 2005)", ISBN 5-93986-025-7.This book gives perspectives of our civilisation for nearest hundred years. Authors don't take on themselves hard task foreseen details of our civilisation development. They consider some more probable variants of it's death. And with certainty, based on the using of the Second Law of Thermodynamics, more universal Law of the Universe, authors state that after rejecting from space colonization our planet change to close system and is doomed. One reason of civilisation doom among others is changed role of mass men in our society. Authors make references to works of G.Lebon, J.Ortega-y-Gasset, O.Spengler, A.Toynbee, Ayn Rand and others writers and scientists.