The document discusses the Lean Startup methodology. It notes that traditionally startups relied on intuition and business plans, but most startups fail because the problem and solution are not validated with customers. Lean Startup provides a rigorous process to iteratively test hypotheses through building minimum viable products and getting rapid customer feedback to learn what works best. It involves techniques like building, measuring, and learning from results in short cycles to pivot the startup idea as needed based on validated learning from customers rather than relying only on initial plans or intuition.