Retention curves that flatter the first week
A handsome D1 line can hide a broken return habit. The window we prefer, and the entry event that makes the line honest.
Notes from the desk
Short essays used in Chamber reading weeks. They are not vendor tutorials.
Session replay without a spectacle
Sampling, consent copy, and the difference between a rage-click and a sheet that simply failed to load.
An event taxonomy a designer can argue with
Verbs before properties. Why letting every squad mint its own nouns is more expensive than a slow naming meeting.
Cohort windows and the sample you did not mean to take
Who is missing from a “new user” cohort when the app is used on a shared tablet, and how the Observatory writes that down.