DAILY SITUATION RECAP (@theojaffee): AI leaders and economists sign an open letter on AI’s economic impacts. The letter, titled “We Must Act Now”, calls for economists, policymakers, and tech leaders to act now to understand and steer the economic impacts of transformative AI. Signatories include multiple Nobel laureates, frontier lab employees, and hundreds of economists. Richard Sutton founds a neolab, Oak Lab, to build entirely new algorithms for deep learning, with a “holy grail” of…