In November 2013 The New Institute and Crimson Architectural Historians organized a series of public meetings during the X Bienal de São Paulo called ‘Track Changes’. A generation of architects and urbanists, who are connected through a common attitude, were invited to meet in an arena built especially for the occasion. Whether working in the favelas of South America, the slums of India or in the crumbling housing estates of Europe, this generation has replaced the large-scale top down masterplan and the iconic hypermodern building with a participative, temporary and flexible bottom-up approach.