Abnormalreturns iconAbnormalreturnsSep 20, 2026 ~5 min source read

Sunday links: the AI safety debate

A curated roundup highlighting the week’s notable links: the intensifying AI safety conversation, practical bond-market guidance with higher yields, leadership changes at Berkshire Hathaway, and assorted policy, geopolitical, and tech incidents that mattered.

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Useful takeaways from this story.

AI safety is a central, contested topic this week after high-profile essays and resignations prompted industry leaders and politicians to weigh in.

Corporate and geopolitical developments — Berkshire Hathaway’s chair change, an Iran strike damaging an Amazon data center, and ICE hiring issues — mattered to markets and policy discussions.

The useful part

How to structure a bond portfolio, especially if you don't know where interest rates are headed. (dampedspring101.substack.com) Tweet Pocket Instapaper Berkshire Hathaway Howard Buffett is now the chairman of Berkshire Hathaway ($BRK.A). (wsj.com) Tweet Pocket Instapaper Symbols: $BRK.A Three issues to consider with the new Berkshire Hathaway ($BRK.A).

How it works

  • (arstechnica.com) Tweet Pocket Instapaper Symbols: $AMZN How an AI hallucination almost caused a military operation.
  • (axios.com) Tweet Pocket Instapaper Stay in touch Work in wealth management?
  • (abnormalreturns.com) Tweet Pocket Instapaper Policy The federal government cut the civilian workforce.
  • (bloomberg.com) Tweet Pocket Instapaper More signs the administration is dismantling the firewall between politics and data.
  • (economicweekly.substack.com) Tweet Pocket Instapaper Earlier on Abnormal Returns Top clicks this week on Abnormal Returns.

What to take from it

(techcrunch.com) Tweet Pocket Instapaper ICE ICE did not do adequate vetting during its hiring spree. (yahoo.com) Tweet Pocket Instapaper Alligator Alcatraz really was rife with abuses. (nbcnews.com) Tweet Pocket Instapaper Politics Historically the Attorney General doesn't campaign for political candidates.

Example or evidence

  • (npr.org) Tweet Pocket Instapaper Money for national parks has been diverted to Washington DC.
  • (nytimes.com) Tweet Pocket Instapaper Iran The DOD has not been forthright about Iran war casualties.
  • was behind as behind two military strikes on a school ‌and sports facility in Iran in February.
  • (cbc.ca) Tweet Pocket Instapaper Economy Manufacturing is hanging in there.

Details worth keeping

Sunday links: the AI safety debate Quote of the Day "This moment requires treating the AI-safety debate skeptically but also taking it seriously, even if the participants can seem unserious." (Charlie Warzel) Chart of the Day Why starting bond yields matter. (awealthofcommonsense.com) Tweet Pocket Instapaper. (humbledollar.com) Tweet Pocket Instapaper Bonds are now investable.

Related coverage

  • Techcrunch: Not everyone agrees with Amodei's call for globally coordinated action for AI safety.
  • Theverge: Dario Amodei kicked off a flood of statements over the past few days about AI safety by publishing a long essay titled "We Must Pace the Frontier" detailing why AI development should be slowed down.
  • Businessinsider: In this Sunday edition of Business Insider Today, we're talking about the AI industry's existential angst, and its plan to slow everything down.
  • Abnormalreturns: Strategy How has the stock market shrugged off higher rates?

More context around this story.

Abnormalreturns iconAbnormalreturnsSep 28, 2026

Monday links: AI aggregators

Strategy How has the stock market shrugged off higher rates? (awealthofcommonsense.com) Opportunities are opening up in the bond market. (capitalspectator.com) What is a bond investor to do now? (fortunesandfrictions.com) Technology The scale of the iPhone is truly staggering. (asymco.com) Why hasn't there been a succe

Abnormalreturns iconAbnormalreturnsSep 27, 2026

Sunday links: staying private longer

Markets A positive seasonal window is opening. (trendlabs.com) Bonds are no longer overvalued. (mrzepczynski.blogspot.com) Strategy Why indexing has dominated the past decade. (awealthofcommonsense.com) Why Warren Buffett succeeded: his investment strategy matched structure. (jasonzweig.com) How to avoid getting taken

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