I was in Zürich, which is 120 km from my home town. Spiegelgasse n°1: this is where Hugo Ball launched the Cabaret Voltaire in february 1916 (Arp, Huelsenbeck, Janco, Ball, then Tzara). The same street, N°14: this is where Lénine moved exactly at the same time. What an incredible coincidence: two revolutions in this same small city's small street. Lénine played chess with Tzara and Tzara didn't really know who he was, who he would become. Lénine wasn't a monster. He didn't want to have Staline ruling the USSR after him. But it's Staline who turned communism into a Dada system...