Michael J. O'Brien is Provost and Professor of History at Texas A&M University-San Antonio and the coauthor of I'll Have What She's Having- Mapping Social Behavior and The Acceleration of Cultural Change- From Ancestors to Algorithms (both published by the MIT Press). Briggs Buchanan is Assistant Professor of Anthropology at the University of Tulsa. Metin I. Eren is Assistant Professor of Anthropology and Director of Archaeology at Kent State University.