Explore the concept of simplicity in software development through this insightful conference talk by Guilherme Ferreira. Delve into key principles such as the Unix philosophy of "do one thing and do it well," pre-mortem analysis for fail-fast approaches, and the importance of saying "No" to unnecessary features. Learn about embracing constraints, design-first methodologies, and the significance of clean code practices. Discover techniques for reducing complexity, including subtraction and consolidation, while understanding the value of clear communication through writing. Gain valuable insights on how simplicity can lead to ultimate sophistication in software architecture and product development.