Roundup #81: Back to our regular programming

Noah Smith · Noahpinion · May 01, 2026 at 08:57 · ⏱ 23 min read  | Read on Substack ↗
Summary
Noah Smith's roundup covers multiple policy and economic topics, arguing that U.S. fiscal irresponsibility is rising but unlikely to trigger immediate crisis, while AI job displacement is real for younger coders but overall labor markets remain tight. The newsletter offers no explicit trade recommendations or market calls, serving instead as a broad commentary on public policy and technology trends.
  • U.S. federal debt held by the public exceeded 100% of GDP for the first time since WWII; debt is now over 8 times annual tax revenue.
  • Interest payments as a percentage of GDP are nearing record highs as debt gets rolled over at higher rates.
  • Anthropic's Claude Mythos and OpenAI's GPT-5.5 both display superhuman hacking abilities, but no major cyberattack wave has occurred, suggesting defensive systems are robust.
  • Phone bans in schools show positive effects: improved GPA for girls (0.086 SD increase), reduced bullying, and majority student support; 35 states enacted restrictions by end of 2025.
  • Tucker (2026) found early-career hires (ages 22-24) in AI-exposed industries declined 12% over 10 quarters after ChatGPT's launch; Crane & Soto (2026) found coder employment growth fell 3%.
  • Millennials had 20% higher real median household income at ages 36-40 than the previous generation, similar to Gen X's relative gain.
  • BART fare gates generated $10 million extra annual revenue, reduced crime by 41%, and cut cleaning hours by nearly 1,000 in six months.
  • California's accessory dwelling unit (ADU) legalization led to ~150,000 permits and ~80,000 units built; the state density bonus law facilitated over 140,000 units since 2020.
Read time 23 min
Length 23,395 chars
Category macro
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