Subscribers don't churn — they fade.

Weekly opens by cohort % of subscribers opening, weeks 0–24

Actual opens (n = 41,820) Predicted churn model

Median attention half-life

12wks

↓ 4.2 wks YoY vs. 16.2 wks in Q4 2023

68.4% Open · week 0

11.7% Open · week 24

2.3% Hard unsubscribes

56.7pp Silent decay

This is the The Grinch Green Fur 2000 design system, applied by Curio Design — a design-style library for AI agents. Full The Grinch Green Fur 2000 guide → designbycurio.com/learn/the-grinch-2000-fur