The meeting between Donald Trump and Xi Jinping in Busan, South Korea, was more than an exercise in diplomacy. It was an emblematic performance of a world in transformation. Behind the formalities, the cameras, and the studied smiles lay an unspoken recognition: the world is no longer unipolar. The era of American supremacy, sustained for decades through its economic reach, military presence, and ideological projection, is giving way to a more diffuse, multipolar reality.
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