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Diagnostic question

Do newer cohorts beat older ones?

Compares cohorts at the same age to see whether the product is getting better for new users.

ValueReturn

Plain label: cohort stacking question

The question we ask

At the same age, do newer cohorts retain better, the same, or worse than older ones?

Sources

Book content is paraphrased, never quoted at length. Last verified October 24, 2026.

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