Chapter 03 · Retention Bearing Quarterly · The Compounding Grid
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Insight 07 · Cohort Retention Study

Subscribers don't churn — they fade. Read frequency, not cancellation, is where the loss begins.

Across 42 monthly cohorts (Jan 2022 – Dec 2024), weekly open-rate drops precede formal cancellation by an average of 5.4 months. The signal is quiet, but measurable — and reversible.

Weekly opens vs. formal cancellations · 12-month cohort
Cohort C-2023-Q3 · n = 8,412 · indexed to month 0 = 100
Weekly opens Formal cancellations
100 75 50 25 0 M0 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11 M12 THE FADE WINDOW · MONTHS 2 – 7 OPENS DROP 50% · M4 CANCELS ACCELERATE · M9
This is the Protopia design system, applied by Curio — a design-style library for AI agents. Full Protopia guide → designbycurio.com/learn/protopia-near-future