Ragnar Kjartansson, A Lot of Sorrow, 2014, Single channel video, Running Time: 6 hours, 9 minutes, 35 seconds. Collection of the Modern Art Museum of Fort Worth, Museum purchase. Photographs: Elisabet Davidsdottir © Ragnar Kjartansson and The National; images courtesy of the artists, Luhring Augustine, New York, and i8 Gallery, Reykjavik