Facsimile edition of a lecture transcript given by German-born artist Gustav Metzger at the Architectural Association in February 1965. This new edition is published 50 years on since its original printing in June 1965 by the AA's Action Communications Centre (A.C.C), reigniting Metzger's urgent and ever-relevant arguments which confront society's obsession with destruction and the detrimental effects of machinery on human life.