Why event names rot
A tracking plan is a living manuscript until the first redesign, after which it becomes folklore. How names die, and how to write retirement into the standard.
Journal
Notes we were tired of repeating in the rooms.
These essays are not newsletters. They are the arguments we now ask students to read before week one of Cohort Instrumentation.
Reading retention without vanity
Unbounded retention looks generous. N-day looks strict. Boards pick whichever line is kinder that month unless you freeze the map.
The quiet cost of too many dashboards
Each new board is a small abdication of a written sentence. Eventually nobody knows which chart is licensed to change a roadmap.
Cohort windows that lie
How a seven-day window becomes “roughly a week” in a slide footnote, and why App Analytics cannot survive that shrug.
Instrumentation debt in mobile apps
SDK versions, delayed releases, and the week your Android build and iOS build tell two different stories about the same button.