Writing
Writing
Notes on machine learning, agents, and whatever else I’m thinking about.
- Jul 16, 2026Teaching a 135M model to keep financial facts attachedA controlled LoRA ablation on synthetic card comparisons, where explicit semantic tags reached 64/64 held-out critical passes.
- Jul 6, 2026Notes from AI EngineerSix takeaways from the AI Engineer conference.
- Jun 30, 2026PPO to GRPO and backHow I think about PPO and GRPO, why GRPO drops the critic, and why long-horizon tasks pull the field back toward one.
- Jun 17, 2026Where are the darkest skies on Earth?Finding the Bortle-1 point farthest from any artificial light, using the World Atlas of Artificial Night Sky Brightness