Our departure point is a cryptic remark made by Henri Lefebvre soon after the close of the 1980 exhibition. Reflecting on the curators' claim that the modernist project of urban architecture was over, Lefebvre speculated whether the notion of 'the postmodern' meant the technological production of space was mutating into some as yet unknowable social form. Describing the architectural as 'common to technology, art, social practice and everyday life,' Lefebvre said, 'Developments in architecture always have a symptomatic significance initially, and a causal one subsequently'.[5]