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
Activation
The moment a new user first gets real value from a product. Activation rates usually pass the "would this change a decision?" test that vanity metrics fail.
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 · L032:01The Product That Sold Itself
Make value fast, make sharing natural, and let the product earn its own customers: reward both sides when people invite a friend.
Growth