Looks to me like a very long blog post about why you should use clojure. I.e., use map and comp and avoid objects (to add 'extensions' the way you want). The

Looks to me like a very long blog post about why you should use clojure. I.e., use map and comp and avoid objects (to add 'extensions' the way you want). The category theory + Java part certainly helps selling this to big enterprises though.