Lenny Rachitsky@lenny-rachitsky

This maps to every conversation I have with the best product teams. The ones with great retention aren't running on the latest model — they interviewed 50 users and rewrote their onboarding flow. Fundamentals don't move just because the layer above them does. The checklist I keep coming back to: do you know why your last 10 churned users left? If not, no framework will save you.