This article presents an interview with Chris Dede, the Timothy E. Wirth Professor in Learning Technologies at the Harvard Graduate School of Education. His research interests include the use of emerging technologies in education, with emphases on online professional development, scaling up innovations, and immersive interfaces for learning. He is a frequent speaker for education, research, and policy audiences. In this interview, Dede discusses the merits of online vs. face-to-face professional development.