The Actor Model: Principles of Reactive Programming

This lecture introduces the Actor Model, which represents objects and their interactions similar to human organizations. The Actor Model is built upon the laws of physics and emphasizes asynchronous message passing. The lecture covers the definition of an Actor, the Actor Trait, creating stateful and stateless Actors, sending messages between Actors, changing an Actor's behavior, and creating/stopping Actors. Examples and code snippets are provided to illustrate the concepts, including how Actors can send messages, create new Actors, and define behaviors. The lecture concludes by explaining the actions an Actor can take upon receiving a message.