Explore the concept of immutability and its practical application in software development through this insightful conference talk. Delve into the challenges of refactoring existing code to embrace immutability, and discover approaches to reduce state mutability. Learn about the importance of reasoning in code, the significance of architectural decisions, and the balance between functional and imperative programming styles. Gain valuable insights on implementing immutable value objects and understand the principles behind the Anti-IF Campaign. Enhance your programming skills by mastering the art of refactoring towards immutability and its potential to revolutionize your coding practices.