product theory
The more useful something is, the harder we scrutinize its price. Why we under-invest in essentials, over-invest in indulgences, and how great products flip the switch.
goodharts-law
Set a target, and your team will hit it — often without touching the thing you actually care about. Goodhart's Law explains why every metric you optimize eventually lies to you.
product theory
DAU up. Churn down. Everyone nods. Meanwhile a user is quietly switching to a competitor. That gap has a name — Metric Theater — and it's killing your product.