Chapter 11. Mutation
This chapter covers
Clojure’s main tenet isn’t the facilitation of concurrency. Instead, Clojure at its core is concerned with the sane management of state, and facilitating concurrent programming naturally falls out of that. The JVM operates on a shared-state concurrency model built around juggling fine-grained locks that protect access to shared data. Even if you can keep all of your locks in order, rarely does such a strategy scale well, and even less frequently does it foster reusability. But Clojure’s state management is simpler to reason about and promotes reusability.