Such a view locates urban outcomes and influences in the character of these networks, which together power urban life, allocating resources, shaping social opportunities, maintaining order and simply enabling life. More than the silent stage on which other powers perform, such networks represent the essence of the city. They also form an important political project, a politics of small interventions with large effects. The increasing evidence for an Anthropocene bears out the way in which humanity has stamped its footprint on the planet by constructing urban forms that act as systems for directing life in ways that create both immense power and immense constraint.