Notes from my second brain. Book notes, learning notes and half-formed ideas, some of them years old.

They're raw. I wrote them for myself, so expect typos and unfinished thoughts. But a note that helps someone seems better than a note that sits in a folder.

How they get here: my Obsidian vault holds a lot of private stuff (journals, finances, you name it). A local model on my own machine sorts every note by how private it is. I approve the public ones, and only then does an agent read them and pick what goes on this page. Nothing else leaves the machine.

Building companies and products

Learning and memory

How the brain learns

People and conversations

Book and podcast notes

Loose ideas