R. Alexander Bentley is Professor and Chair of the Department of Anthropology at the University of Tennessee and 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).

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).