# Cohort analysis: [question being answered] — [date]

**Design decisions (made first — references/cohort-design.md):**
Dimension: [signup-time / channel / first-action / segment] · Cell metric: [retained% / revenue%] · Width: [wk/mo] · Min cell n: [50+]

## The table
| Cohort (n) | P1 | P2 | P3 | P6 | P12 |
|---|---|---|---|---|---|
| | | | | | *(grey immature cells)* |

## Three-pass reading
**Down-column (product improving?):** [newer cohorts at same age vs older — the verdict]
**Across-row (where's the cliff?):** [the period where each cohort bleeds — the intervention moment]
**Diagonal (calendar events?):** [anything that hit everyone at once — checked before crediting/blaming the roadmap]

## The finding
[One paragraph: what the table says about the question, with the two cells that carry the argument]

## Confounds acknowledged
[population mix / definition changes / seasonality — and how they were handled]

## Decision & follow-up
| The table says | So we will | Owner | Re-read on |
|---|---|---|---|
