Jeffrey Stein AIA, award winning architect and writer, is President of the Cosanti Foundation in Arizona. The Foundation, begun 60 years ago by internationally renowned architect Paolo Soleri, is responsible for ongoing design and construction of the urban laboratory Arcosanti < www.arcosanti.org > in central Arizona. A longtime Soleri collaborator, Stein is former Dean of the Boston Architectural College. He has taught at architecture schools in the US and at the Technicum Winterthur, Zurich, and Ecole d’Architecture Languedoc-Rousillon, in Montpellier, France. Mr. Stein has written regularly for ARCHITECTURE BOSTON magazine and was architecture critic for the New England newspaper, BANKER+TRADESMAN. He lectures widely about urban design, including at the recent Tel Aviv-Yafo Centennial Conference on Urban Sustainability, and last fall’s 9th World EcoCities Congress in Montreal. His work at Arcosanti was the recent cover story for SUSTAINABILITY magazine; his talk in San Francisco was featured in the global TEDxCITY2.0 last month. This is Stein’s second Techonomy appearance.