Once you're running a set of matched funnels, it's easy to spend across all of them on instinct — scaling the one with the prettiest top-line number and quietly letting your winners subsidize losers you've never had the heart to cut. This course teaches you to run each path as its own channel with its own P&L: measure the one number that decides, read a test only when it's earned the right to be read, and move budget from losers to winners by rule, not by mood. You leave owning a Channel Scorecard for your own funnels — and the answer to the only question that matters: which of my funnels actually pays?
One button change once raised an extra $60 million. Your instinct about which message wins is wrong roughly two times out of three.
Most marketing decisions are made on opinion, then defended after the fact. A test gets called a winner at 95% confidence that was really 74%. A cheap channel keeps getting budget while it quietly loses money on every customer. The team only studies the campaigns that survived and never asks about the ones that vanished.
This course gives you the experimentation discipline behind those decisions: how to read statistical confidence honestly, spot survivorship bias before it fools you, judge a channel on true unit economics, and run a clear kill, hold, or scale call on every test. You also learn why every winning ad is already decaying, so you scale on a schedule instead of riding a creative until it dies.
Founders: want to stop wasting ad spend on channels and messages that feel right but lose money.
Growth marketers: run A/B tests but want to trust the confidence numbers and call winners without fooling themselves.
Marketing managers: need a repeatable scorecard to decide which channels and creatives to kill, hold, or scale.