Roundup #82: Staring in wonder at the world

Noah Smith · Noahpinion · May 21, 2026 at 06:51 · ⏱ 24 min read  | Read on Substack ↗
Summary
Noah Smith's newsletter roundup covers a wide range of policy and technology topics—falling crime, ineffective immigration raids for wages, rising AI backlash, an AI solving a major math problem, and the rise of solopreneurship—but offers no explicit trade ideas or company-specific actionable calls. The article is thematic and analytical, not a source of direct investment signals.
  • Homicides dropped 17.7% across largest U.S. cities in early 2026; robberies fell 20.4%, rapes 7.2%, aggravated assaults 4.8%.
  • Cox and East's 2026 paper finds Trump's immigration arrests had no positive effect on native-born workers' wages, with a small negative effect on male workers.
  • An OpenAI general-purpose reasoning model autonomously solved the planar unit distance problem (Erdős problem), a prominent open math problem.
  • Americans' negativity toward AI is rising, with protests and political salience increasing; AI is now nearly as unpopular as Donald Trump or ICE.
  • China's AI policy community shifted from ranking AI's job impact 6th out of 7 concerns in 2024 to 2nd in 2026.
  • Peter Enns' new paper shows that Gilens & Page (2014) suffer from Simpson's Paradox; when including cases where rich and poor agree, policy responsiveness to the rich disappears.
  • The invention lag between technical feasibility and actual invention collapsed after the Second Industrial Revolution, per Brian Potter's AI-assisted analysis.
  • New business formation (solopreneurship) remains elevated post-pandemic, partly driven by AI tools.
Read time 24 min
Length 24,538 chars
Category macro
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