What's the Difference Between Cohort Analysis and Product Analytics?

I remember an exact same experience with like, what cohort analysis what? Even though you've heard about cohorts before, but you sort of probably just never put it in context with like product analytics or like user experience analytics. It's really powerful for whoever's listening. Can you tell us what survival analysis since you mentioned it? I think it's such an underappreciated aspect of data analytics, these days. And so obviously we don't have all of the words and the vocabulary.