Model your system as streams of events and state transitions instead of nested callbacks.
Reactive systems are built around events and flow, not around “who owns the thread.” You push values through a pipeline and treat coordination as explicit, testable structure.
This section focuses on how to keep reactive code readable: use small pure transforms, keep state changes isolated, and make boundaries (I/O, time, retries) obvious.
If you come from Java reactive libraries, the mental model is similar—but the payoff in Clojure is often bigger because your business logic can stay as plain functions over data.