Justice Potter and the Ultra-Processed Food Dilemma

Regulators are moving toward policies targeting ultra-processed foods, but a fundamental issue remains unresolved: what exactly qualifies as one? Like Justice Potter Stewart’s famous struggle to define obscenity, UPFs often seem obvious until we attempt to draw a...

March Madness, Medical Edition: Public Health’s Sweet Sixteen

Public health has its own bracket of champions: breakthroughs that eliminated deadly diseases, revolutionized surgery, and opened entirely new doors in medicine. From vaccines to mRNA technology, these sixteen advances didn’t just win scientific matchups—they helped...

From Asteroid Defense to Vaccines: The Economics of Public Safety

Public goods create a peculiar dilemma: everyone likes the benefits, but paying for them is another matter. Economists call this the free-rider problem—people can enjoy protection, clean air, or herd immunity even if someone else pays for it. Attempts to solve that...

The AIgorithm That Said No

A class action lawsuit against UnitedHealthcare claims that an AI system was used to unfairly deny post-acute rehabilitation coverage for Medicare Advantage patients, sometimes overruling treating physicians’ judgments. The case raises a bigger question: when...

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