Stefano Boeri presented Multiplicity, a research agency in the area based in Milan, which executed projects in different areas of the world using multiple systems of analysis, investigation, and representation through a network made of architects, geographers, artists, urban planners, photographers, sociologists, economists, and directors.

Multiplicity designed and produced installations, seminars, and publications through the hidden processes of transformation of the urban condition and investigated the physical environment, looking for clues and traces produced by new social behaviors. Among the projects realized were USE-Uncertain States of Europe, Tokyo Voids, Solid Sea, and Border device(s).