Markets live and die by narratives, and this week’s tale is one of cautious optimism wrapped in geopolitical tension. As the S&P 500 surges on rumors of diplomatic detente and falling bond yields, investors pin their hopes on Nvidia to confirm that tech’s rebound is more than a mirage. Yet beneath the bounce lies a fragile reality - of strained global alliances, mounting debt, and a central bank waiting for the next shoe to drop.