The Growth Brief

Growth, product marketing, and AI. One take a week.

Every Tuesday: one argument worth having and 5-8 links worth a tactician's time. Written for growth and product marketers who ship.

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Your A/B Test Picked the Worse Ad 43% of the Time

GrowthSpree tracked $14.2 million in ad spend to closed-won revenue and found click-through rate correlates to pipeline at 0.18. The problem isn't the metric. It's that you wired your optimization loop to it.

Celebrity Art Explains AI Search

A new study found AI search picks familiar brands 3.2 times more often than unfamiliar ones, which means your AEO plan needs more fame-building, not just more schema.

The Messaging Didn't Fail. The List Did.

Sometimes it's bad data that ruins a launch. If your list has the hygiene of a gas station bathroom, old emails, no verification, dead contacts, your email launch will flop no matter how good the copy is.

AI citations are weather, not real estate

Semrush found ChatGPT keeps only a quarter of its cited sources when it reasons harder. That breaks how most growth teams are chasing AI visibility.