Tim received his A.B. from New College of Sarasota, Florida in 1972 and his Ph.D. in anthropology from the University of Florida in 1978. Except for brief interludes in Avignon, Calgary, and Besançon, his academic career to date has been at Washington State University (WSU), Pullman. He directed the Village Ecodynamics NSF Coupled Natural Human Systems project and a joint WSU/University of Washington IGERT called IPEM (IGERT Program in Evolutionary Modeling). He uses agent-based models as aids in calibrating interpretations of what happened in prehistory, with emphasis on the US Southwest, where he is a Research Associate at Crow Canyon Archaeological Center, Cortez, Colorado. Current research areas include paleodemography, human environmental impacts, and social evolution/culture change in Neolithic societies.