Each autumn, the nations of the world gather beneath the same roof to speak the language of shared purpose — and each autumn, the distance between that language and the levers of actual power becomes a little harder to ignore. This year's UN General Assembly convened with the customary declarations of cooperation, yet the architecture of influence remained what it has long been: a formal equality of voices arranged around a very unequal distribution of consequence. The gathering raises, once again, the oldest question in multilateral diplomacy — not whether nations can agree, but whether agree