Brain Drip
An open notebook on modern machine learning.
Four kinds of writing live here. Drips are interactive explainers for single concepts. Courses are sequences of Drips, read in order. Notes are essays and observations. Blueprints are practical guides with working code. Everything is free.
Drips
Interactive explainers for one concept at a time. Read these when you want to understand a single idea well.
Courses
Sequences of Drips arranged in a teaching order. Read these when you want to learn an area from the beginning.
Notes
Essays, observations, and arguments. Read these to know what I think, not just what I know.
Blueprints
Step-by-step build guides. Read these when you want working code by the end of the afternoon.
Recent entries
- May 20, 2026NoteAI Agents Work. The Data Doesn't.
- May 14, 2026DripNatural Language Autoencoders9 min
- May 14, 2026NoteState of OSS AI, Spring 2026
- May 13, 2026NoteThe /goal command — 11 days, 3 tools, one primitive
- May 9, 2026NoteWhy I'm redesigning Brain Drip6 min
- May 9, 2026NoteAirbnb's 60% playbook
- Apr 22, 2026DripTransformers, From First Principles14 min
- Apr 14, 2026DripDiffusion Models, Denoised10 min
About this notebook
Brain Drip is written by one person, in long-form, with no schedule. The goal is to leave behind a small collection of explanations I would have wanted to read when I was learning these things.
The material assumes you can read code and follow a derivation, but it does not assume any specific background. Each Drip is self-contained.
How to read it
If you want a single concept explained well, open a Drip. If you want to learn an area properly, work through a Course. If you want to read what I’m thinking about, the Notes are the best place. If you want to build something this afternoon, start with a Blueprint.
Colophon
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© 2026 Brain Drip.