RECENTLY
What changed lately
Recent note edits show up here. Unfinished drafts remain sensibly private.
See all changes →01 / NOTES
Browse by layer
Durable foundations, working systems, and fast-moving notes each need a different shelf life.
Foundations
Computer science, mathematics, and AI concepts that survive product cycles.
AI Systems
MCP, skills, harnesses, evaluation, and the control layers around models.
Frontier Radar
Dated model and API snapshots, prices, and capabilities worth watching.
Practice
Tools, commands, and workflows worth solving once and reusing.
Domains
Quantitative finance, culture, design, and interests that keep developing.
Reference Shelf
Older course notes stay searchable without taking over the main reading path.
02 / WRITING
Writing
Longer notes, observations, and the occasional disagreement with the universe.
See all writing03 / PLAYGROUND
Web experiments
Small experiments in interaction and graphics, including the ASCII globe.