Chapter 4 · Reader Lifecycle
14
Subscribers don't churn — they fade.
Engagement decays steadily after the first 90 days unless rekindled.
Weekly open rate, cohort joining January 2024
100%
75%
50%
25%
0%
Week 0
Week 4
Week 8
Week 12
Week 16
Week 20
48% still open at week 12
This is the
Algerian M'zab Tilework
design system, applied by
Curio Design
— a design-style library for AI agents. Full Algerian M'zab Tilework guide →
designbycurio.com/learn/algerian-mzab-tilework-cyan