
ReferenceJune 28, 2025
Cost Cap
Cost cap = flexible target, not hard limit. Algorithm averages toward target. Better for scaling than bid cap.
2 min readBlog
Field notes and research on paid media, memory, and the difference between a number and a decision.
124 posts in Reference

Cost cap = flexible target, not hard limit. Algorithm averages toward target. Better for scaling than bid cap.
2 min read
MRR = monthly subscription revenue. 10%+ MoM growth is strong. Track New, Expansion, Churned, Contraction.
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Churn target: under 5% annual. 5% monthly = 46% annual loss. Reducing churn > increasing acquisition.
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Payback: 12-18 months acceptable, under 12 strong, over 24 concerning. Determines cash needs.
2 min readThe record
Stop running an account that forgets.
Every decision written down, with its reason and its result. That is the whole product.