This podcast episode explores the journey of the Angular team as they embarked on a mission to overhaul the reactivity model of the Angular framework, eventually settling on signals as the foundational piece to replace ZoneJS. It delves into the exploration of signals, addressing the challenges, trade-offs, and benefits associated with this new reactivity system in Angular. The episode also discusses the challenges of managing change in large-scale Angular applications and the importance of gradual improvement and refactoring. Additionally, it examines the relationship between signals and RxJS, highlighting their differences and addressing the challenges developers face in learning RxJS. The podcast concludes by discussing the integration of Angular Signals with NgRx and the future roadmap for Angular signals.