Two of the world's most consequential leaders meet this week in Washington, where Donald Trump will host Xi Jinping with a ceremony reserved for no other nation — ally or adversary. The encounter arrives as a fragile trade truce nears expiration, an AI arms race accelerates, and Taiwan's fate hangs in deliberate suspension. What is being negotiated is not merely tariffs or technology, but the architecture of a relationship that will shape the coming century. Personal diplomacy, for now, is the chosen instrument against structural forces that grow heavier with each passing month.