This episode explores the economic implications of Donald Trump's unexpected tariff announcement, dubbed "Liberation Day," which imposed vastly different tariffs on various countries. Against the backdrop of this significant trade shock, larger than the Smoot-Hawley tariffs, host Ezra Klein interviews Nobel laureate Paul Krugman to analyze the seemingly arbitrary calculation method behind the tariffs, which appeared to be based on bilateral trade deficits. More significantly, the discussion delves into the fundamental misunderstanding of trade deficits, clarifying that they are not inherently negative and don't necessarily indicate unfair trade practices. For instance, the conversation highlights the absurdity of the tariff calculation, potentially even generated by AI, and its implications for global trade. As the discussion pivoted to market reactions, Krugman points out the market's rejection of the tariffs, suggesting that markets understand the economic principles better than the Trump administration. Ultimately, the conversation reveals the profound uncertainty created by the unpredictable tariff policy, increasing the likelihood of a US and global recession, and underscores the lack of a coherent economic rationale behind the administration's actions.