This Issue was produced under the auspices of the research program Dexter Bang Sinister at Kunsthal Charlottenborg, Copenhagen, January 21 – October 28, 2012, curated by Rhea Dall. The program, devised by Angie Keefer, David Reinfurt and Stuart Bailey together with writer-critic-curator Lars Bang Larsen, was based on Lars’s just-completed PhD dissertation at the University of Copenhagen, A History of Irritated Material: Psychedelic Concepts in Neo-Avantgarde Art. In practice, a large part of the so-called research played out in the form of an exhibition set up to explore the notion of *black & white psychedelia*— halfway closing the doors of ...