[dkersten]

The core.memoize[1] core library (not the clojure.core/memoize function) allows you to specify a core.cache eviction policy (e.g. LRU and others, which is fine for production use.

[1] https://github.com/clojure/core.memoize

[latte]

Exactly - core.memoize (or core.cache) is for production vs clojure.core/memoize for prototyping.