Economist aka Shan points out that the monetary policy choices of the Federal Reserve's new head, Warsh, are pushing the US economy to a critical juncture. Shan believes that Warsh will either stick to a tight policy, bursting multiple bubbles in AI, real estate, and private credit, triggering a "Global Financial Crisis 2.0" far more intense than 2008; or, under political pressure, revert to easing, leading to a systemic collapse of the dollar's purchasing power, i.e., "Global Currency Crisis 1.0". Shan judges that the probability of Warsh choosing to revert to easing and triggering a "Dollar Crisis 1.0" is overwhelmingly higher than sticking to a tight policy, because the political pressure to restart the Zero Interest Rate Policy (ZIRP) and Quantitative Easing (QE) will be immense during a sharp economic recession.