The concluding chapter considers the challenge of reconstituting political authority at the level required to manage complex global risks over long time horizons, to mitigate the chance of systemic disasters, and to prepare for emergencies. It confronts the need to come to grips with related moral hazards in both public and private sectors. The unavoidable task now facing humanity recalls earlier historical episodes when the scale of governments had to adapt to the changing dimensions of risk facing dynamic societies. Stepping back from utopian dreams of world government, the cases covered in the book suggest the wisdom of pragmatic multi-level experimentation informed by insurance practices and metaphors. This kind of incremental innovation has long been evident in functioning confederal and federal political systems. Given the federalizing logic of insurance that has shifted the contours of markets and many polities ever outward, the narratives at the heart of this book justify hopes for limited but effective collaborative government at world scale in the foreseeable future.