Here is a seemingly relevant thread from the Clojure group: http://groups.google.com/group/clojure/browse_thread/thread/289904c1a5deb8d8/07326af651db0ef8?lnk=gs

Here is a seemingly relevant thread from the Clojure group: http://groups.google.com/group/clojure/browse_thread/thread/289904c1a5deb8d8/07326af651db0ef8?lnk=gst&q=berlin+brown#07326af651db0ef8 http://groups.google.com/group/clojure/browse_thread/thread/... It was pointed out on there that this is not only a language comparison but a data structure comparison as well. Also, there are no type hints in the Clojure code. Without type hints it would be expected to run significantly slower. It's still an interesting comparison because you would generally only use type hints in performance bottlenecks. I'd be especially interested in seeing what kind of difference it would make in this case.