S1 · L072:33
The Cobra Problem
Measure what changes decisions, align on a North Star, respect retention, and never reward a number without a guardrail.
Metrics
Glossary
Cohort
A group of users who joined in the same period, such as the same week. Comparing cohorts shows whether retention is getting better or worse as the product changes.
Learn it in a lesson
S2 · L012:18The Magic Number
Find the moment your product clicks, measure how fast people reach it, and clear every obstacle on the road.
Growth
S2 · L101:49The Missing Bullet Holes
The data you can see is not the whole story: seek out the users who left, the deals you lost, and the voices that went quiet.
Metrics