I thought you might bring some of that up! :) Unless this URL (http://clojure.org/java_interop http://clojure.org/java_interop) is out of date, then I fail to

I thought you might bring some of that up! :) Unless this URL (http://clojure.org/java_interop http://clojure.org/java_interop) is out of date, then I fail to see how I'm misreading this section. "All arguments are passed to Clojure fns as objects, so there's no point to putting non-array primitive type hints on fn args. Instead, use the let technique shown to place args in primitive locals if they need to participate in primitive arithmetic in the body.". Also, I'm not an expert on JRuby's attempted optimizations, but if I understand correctly they are very limited, much in the same way that Java's escape analysis is. The post By Charles Nutter less than a year ago is illuminating in that regard(http://groups.google.com/group/jvm-languages/browse_thread/thread/2c10bde4b9985086 http://groups.google.com/group/jvm-languages/browse_thread/t...). Have things changed that significantly since then? I follow his blog regularly and in most benchmarks I can remember him talking about he still compares JRuby to Java running boxed math.