If you're into using a Java Virutal Machine(JVM) compatible language due to its syntax or better fit to solve a domain problem, you may be ignoring other metrics like performance, which are just as important when using the Java language itself. This post by Bill Clementson provides a summary of a recent discussion on performance and Clojure, the Lisp dialect designed to run on the JVM. Read Bill's post ' Clojure Discussion - When Performance Matters': http://bc.tech.coop/blog/090113.html