to your health

Peter Attia on the popular peptides craze.

Peter Attia on the popular peptides craze. My summary: he’s not into it! Especially not BPC-157. Frankly he forced me to re-investigate and there’s less support for the mechanism of action than I had believed. “If you’re putting something into […]

better doing

Compression is prediction.

Compression is prediction. “Compression and LLMs are trying to solve the exact same problem…” Based on my read of this post, I am reasonable confident that I don’t really understand modern compression. ~ learn more

tech, startups, internet

Magic is in the multiples.

Magic is in the multiples. “why the ‘magic is in the multiples,’” is how Harvard Business School professors Ruback and Yudkoff summarize the whole game of buying small businesses (“Entrepreneurship Through Acquisition”) well. This episode is a tight refresher on […]

tech, startups, internet

The Al energy bottleneck, with Tim Fist.

The Al energy bottleneck, with Tim Fist. This is a fantastically detailed podcast conversation. “Building new transmission lines permitting for that is an absolute nightmare.” The episode gets very concrete about why AI scaling runs into boring physical constraints like […]

tech, startups, internet

The output is the watermark.

The output is the watermark. The text that your Claude AI agent spits out has a hidden watermark, but it’s not added to the output. Instead, “the watermark is baked into the token selection itself!” It uses “key/context-derived sampling” so […]

fun facts

The professor who taught people how to think

The professor who taught people how to think “Professor Julius Sumner Miller finds pure joy in the ordinary world and cannot rest until you feel it too,” says the description of this restored 1962 episode of *Why Is It So?* […]

thoughts of food

DoorDash gets permission to run an airline.

DoorDash gets permission to run an airline. “For us it’s not just about building the drone, it’s just as much about running the airline: the routing, the safety systems, the operational layer that makes everything fly smoothly.” DoorDash says it […]