The Activation Metric Hunt

We need our activation metric - the early behavior that predicts retention: [WHAT THE PRODUCT DOES, OUR CURRENT ONBOARDING STEPS, ANY COHORT OR USAGE DATA WE HAVE, GUESSES THE TEAM HAS]. Hunt it: the candidate behaviors worth testing (specific, countable, early), how to check correlation with retention using the data we have, the difference between a metric that predicts and one that causes, and the trap of picking something easy to move that does not matter. End with the one candidate to instrument first and the experiment that validates it.