Lenny Rachitsky (00:00:00): The Sean Ellis test, such a seemingly simple idea that has had such a profound impact on the startup world. Sean Ellis (00:00:07): The question is, how would you feel if you could no longer use this product? Once you got a high enough percentage of users saying they'd be very disappointed, most of those products did pretty well. If you felt too low, those products tended to suffer. Lenny Rachitsky (00:00:19): Say someone is listening and they're like, "Okay. Man, I'm getting like 10%. I don't know what to do." What do you find often works? Sean Ellis (00:00:25): Just ignore the people who say they'd be somewhat disappointed. They're telling you it's a nice to have. If you start paying attention to what your somewhat disappointed users are telling you and then you start tweaking onboarding and product based on their feedback, maybe you're going to dilute it for your must have users. Lenny Rachitsky (00:00:41): Moving retention often is really hard, but I guess it sounds like there's often something you can do. Sean Ellis (00:00:45): It's usually much more function of onboarding to the right user experience than it is about the kind of the tactical things that people try to do to improve retention. Lenny Rachitsky (00:00:53): What are like three or four things that you think people should definitely try to help improve activation? Sean Ellis (00:00:58): In my experience- Lenny Rachitsky (00:01:03): Today, my guest is Sean Ellis. Sean is one of the earliest and most influential thinkers and operators in the world of growth. He coined the term growth hacking, invented the ICE prioritization framework, was one of the earliest people to use freemium as a growth strategy, and maybe most famously developed the Sean Ellis test to help you understand if you have product market fit, which a large percentage of founders use today and profoundly impacted the way startups are built. Over the course of his career, Sean was head of growth at Drop...