This document discusses the concept of product-market fit and how it relates to different stages in a product's life cycle. It defines product-market fit as becoming adult and satisfying both a product that meets customer needs and a market that a company wants to serve. The document advocates for an innovative approach like kindergarteners, with a focus on curiosity, humility, and continuous learning and prototyping, rather than hidden assumptions that can hinder success. It contrasts this with traditional business processes that tend to be more linear and focused on execution over exploration.