"At certain points in the history of architecture and urban planĀning, the disciplinary debate on how to apply new technologies surpasses the boundaries of the professions involved. At those times, the hopes and fears found in the disputes between architects, policy makers, engineers and planners are extended to a broader discussion about urban and societal change. Then, the central issue is not merely how to solve a specific spatial problem or improve a construction method with the help of a new technology.