If this isn’t a Zawinski quote, it should be.I have avoided the JVM my entire life. I am presently confronted with problems which fit in the JVM; JVM libraries, concurrency, giant data: all that good stuff. Rather than doing something insane like learning Java, I figured I’d learn me some Clojure. Why not? It’s got everything I need: JVM guts, lispy goodness; what is not to love?Well, as it turns out, one enormous, gaping lacuna is Clojure’s numerics performance. Let’s say you want to do something simple, like sum up 3 million numbers in a vector. I do shit l...