📖 Today’s lesson
Lesson 27: Numbers into narrative.
Computing marketing math is arithmetic; interpreting it for decisions is the job. The model does both fast — you own the judgment about what changes Monday.
Why this matters: Marketers who can’t read their own unit economics get their budgets read for them. CAC-to-LTV literacy — computed, interpreted, defended — is the difference between “the creative team” and “the growth engine” in the eyes of finance.