Zach Tellman delivered a really informative and practical unsession at Clojure Conj 2013 entitled “Predictably Fast Clojure.” It was described as: An exploration of some of the underlying mechanisms in Clojure, and how to build an intuition for how fast your code should run. Time permitting, we’ll also explore how to work around these mechanisms, and exploit the full power of the JVM. I’d like to