A few years ago the most widely deployed sepsis prediction model in American hospitals was independently evaluated. Sepsis is what happens when an ordinary infection tips the body into a chain reaction that starts shutting down organs. It can kill within hours, often before anyone realizes how sick the patient is. The model built to catch it caught only one in three real cases, and flagged one in five of every hospitalized patient as high risk. Clinicians learned fast. The al

I followed Apple's WWDC keynote this year, and then most of a week of writing about it, waiting for someone to say the thing that seemed obvious to me by the end. No one did. So here it is. Apple has stopped trying to build the best AI. It has decided to own the place where AI meets you instead. That is the real story of this keynote, and once you see it, the announcements stop looking like a pile of features and line up behind a single decision. Here is why it matters. When

I read Eckhart Tolle a few years ago. It took a while to make it past the third chapter, and I had to read the early ones six times before I could get a grasp of it. It is hard for a brain to stop running possibilities, predicting scenarios, or thinking about the past. In a world with so much distraction, what Eckhart says can sound like nonsense. Stripped down, it is this. The present is the only thing you can act in. The past and the future are things the mind makes. The fi