some of the section on IO is included in free preview, and looked interesting. I find it funny that most of the languages had some feature or the like to recom

some of the section on IO is included in free preview, and looked interesting. I find it funny that most of the languages had some feature or the like to recommend them and why they are worth learning (Haskell = type system and functional purity, Clojure = a Lisp, Io for prototyping, Erlang for concurrency/actors, etc) but Scala is just "this is a hot new language". Especially since some things got knocked out for not offering anything you could not get in the other offered languages.