The key to fixing our broken patterns of urban development does not lie in grand plans or giant projects; rather, it lies in the collective wisdom and energy of people harnessing the power of many small ideas and actions to make a big difference. We call this making Massive Small change. In an increasingly complex and changing world where global problems are felt locally, the systems we use to plan, design, and build our urban neighborhoods are failing. For three generations, governments the world over have tried to order and control the evolution of cities through rigid, top-down action. Yet, master plans lie unfulfilled, housing is in crisis, the environment is under threat, and the urban poor have become poorer. The system is not broken:
