Norman Klein is a renowned cultural critic and a brilliant media theorist from Los Angeles. In November 2010, he devoted himself in his workshop to topics, which deal with the radical transformation of modern cities. In his performance public space playes the main role. Besides Norman Klein presented his phenomenal project “The Imaginary Twentieth Century”. It had its premiere at the last annual You_ser exhibition at the ZKM and meanwhile got a new form. In a magical way the work reflects visions of the twentieth century from the perspective of the nineteenth century.