The Real Ticking Time Bomb | TCAF 250

Michael Cembalest argues that the biggest markets still look fundamentally pro-U.S.: the dollar’s reserve-currency role has not visibly eroded, foreigners are still buying Treasuries and other U.S. assets, and calls for a near-term collapse in American dominance remain premature. He says the more useful question is not whether the U.S. faces long-run fiscal and policy risks, but whether any concrete market data yet show that investors are fleeing. His answer is mostly no, though he thinks the debt trajectory is serious enough that ratings pressure and a fiscal reckoning could arrive around 2031 or 2032.

The discussion then turns to China, where he argues that capital controls, monetary surveillance, and heavy domestic money growth make China a poor candidate to replace the dollar. He also pushes back on the idea that China is simply dumping U.S. debt, saying reported holdings do not show a true buyer strike. At the same time, he says Chinese AI models are increasingly good, cheap, and strategically important because they can weaken the economic value of U.S. frontier AI companies.

The sharpest warning is on AI and semiconductors. Cembalest says the market is underestimating how quickly hyperscalers are building in-house chips, compressing Nvidia’s economics, and changing the AI capex cycle. He argues that software vendors, AI chipmakers, and leveraged ETF flows are all vulnerable to a sudden shift in expectations, even if the broader market has not broken yet.