Writing
Essays on causal inference, experimentation, AI, and how new technology changes work and learning. Most posts live on Medium.
- Jun 1, 2026The ML Trap in Price Elasticity EstimationMedium ↗How an ML model can predict purchasing patterns well yet estimate price elasticity badly — and why endogenous pricing leads flexible models to learn spurious correlations and recommend wrong prices.
- Apr 29, 2026Quoin: From Prompt Engineering to Workflow State for Claude CodeMedium ↗Why Quoin moved from prompt engineering to a workflow-state model when integrating Claude Code into real codebases.
Demystifying Causality
series · 6 partsAn introduction to causal inference and its applications — from foundations and the do-operator to instrumental variables.