Ideas, observations, questions, and the occasional argument.
Explore by topic.
Featured
Scoring an intervention by replaying it
Most systems predict which merchants are at risk. Keystone measures what an intervention achieved — by replaying the same shock with and without it.
By Sharath Koppu
5 min read
Intent in the loop: an agent that lives inside the browser
The browser renders pages; the human still drives every click. NetSurf puts a goal-oriented LLM loop inside the browser itself — local, visible, and correctable mid-task.
5 min read
When a small difference is not evidence
Spatial-sign summaries look like an easy screen for cointegration. A calibration limit says otherwise — and it can be proved.
4 min read
More to explore
Research
Reading a phase transition from a hundred force traces
Molecular-dynamics force traces of a TiNi crystal, a cubic free-energy landscape, and the inverse problem in between.
20 October 2026 · 4 min read
Assistants tend to be good at code or at 3D — rarely both.
One planner, two specialists
Experiments
Giving radar some colour
Synthetic aperture radar is rich in structure but arrives in grayscale. A deep-learning model learns to colour it.
20 October 2026 · 3 min read
“The most profound technologies are those that disappear. They weave themselves into the fabric of everyday life until they are indistinguishable from it.”
Ideas worth returning to.
Occasional writing. No noise.
No spam. Unsubscribe anytime.