Validated learning is a process used to test and confirm assumptions about a product or business idea through real-world data. It involves creating experiments, such as minimum viable products (MVPs), to gather feedback from users. This feedback helps entrepreneurs understand what works and what doesn’t, allowing them to make informed decisions. The concept is a key principle of the Lean Startup methodology, developed by Eric Ries. By focusing on measurable outcomes, validated learning helps reduce risks and improve the chances of success. It encourages continuous iteration and adaptation based on actual user experiences rather than just theoretical ideas.