That was a good article. Generally I use Scala very little, but in the last few days I have written both Scala and Clojure wrappers for some of my Java code (I wanted idiomatic wrappers that feel Scala-like and Clojure-like - that is why I don't just directly call into Java).<p>Like Clojure, Scala could be a universal programming language for me if it was not for the learning curve: I have invested so many years on Lisp, Java, and Ruby that it is difficult to motivate myself to become proficient with 2 more languages.<p>Anyway, both the article and the comments to the article were interesting.