World government is once again being taken seriously. For decades the target of ridicule, some form of institutionalized global decision making may be inevitable. As the proposition wins broader acceptance, scholars are coming to more closely explore the modalities of world government and the place of democracy within it. The enhanced profile of new actors in globalization's wake has magnified the challenge. Amid conditions of deep instability, isolating elements of a new decision-making architecture is a formidable theoretical task.