On Ep. 146 of our Time Sensitive podcast, the Swiss-born, London-based curator and Serpentine Galleries artistic director Hans Ulrich Obrist shares what he’s learned from his thousands of conversations with artists, architects, and others shaping culture and society globally; reflects on 25 years of the Serpentine Pavilion; and discusses his firm belief that we all need to embrace more promenadology—the science of a stroll—in our lives.