 From an unassuming title, which implied a lecture about "nervous tension and the century's disease", it turned abruptly to political critique, likening the abuses of Nazism to those of communism.Popa's concept of "nervous tension", theorized by Popa from texts by Guglielmo Ferrero, was in fact the collective fear imposed by totalitarianism, which leads man to "hide the reservations imposed by his consciousness.