In a University of Maryland-hosted dialogue "How Do We Know What We Know?" the celebrated choreographer Liz Lerman joins physics experts Dr. Lawrence Krauss, Dr. David Devorkin and Dr. William Dorland to discuss how scientific thought and performing arts experience intertwine in her new work, The Matter of Origins. WAMU's Kojo Nnamdi moderates. Monday, Nov. 1, at 7 p.m. Clarice Smith Performing Arts Center’s Dance Theatre, University of Maryland, University Boulevard and Stadium Drive in College Park. Tickets are free. Call 301-405-ARTS or visit claricesmithcenter.umd.edu.