Over 200 leading economists, AI executives, and researchers—including 15 Nobel laureates—issued a joint declaration titled "We Must Act Now" on Monday (the 13th), warning that the economic transformation driven by artificial intelligence will surpass the Industrial Revolution in scale, yet society has only a few short years of buffer time to prepare. Organized by the Stanford Digital Economy Lab and University of Virginia professor Anton Korinek, the declaration urges governments worldwide to immediately craft policies and institutions to address the risk of mass job displacement. Signatories include OpenAI CFO Sarah Friar, Google DeepMind Chief Scientist Jeff Dean, Anthropic co-founder Jack Clark, and Nobel laureates Michael Spence and Daron Acemoglu. The declaration states that AI could become "extremely powerful" within the next decade, and policymakers must accelerate efforts to establish guardrails or face "large-scale job displacement." Korinek noted that steam, electricity, and computer technology gave society decades to adapt, but the adaptation window for AI may be "just a few short years."