In this conversation about Marcel Duchamp, held in 2018 at the City University of New York, Mary Ann Caws takes her cue from the impressions she received a year earlier by visiting Pablo Echaurren Du champ magn?tique exhibition at the Scala Contarini del Bovolo, in Venice, where the public was invited to climb up and down a dizzying spiral staircase, in homage to the work that made the author of Nu descendant un escalier. According to this exhibition...