[jimbokun]

Clojure:

    user> (def h {:foo "hi"})
    #'user/h
    user> (h :foo)
    "hi"
    user> (h :bar)
    nil

The main difference with the Ruby is the immutable by default data structure, which is why I replaced the assignment with a literal definition of the map. In any case, I think this demonstrates how Clojure has stolen some of the good ideas from Ruby and Python in addition to stealing many of the best ideas from other Lisps.

[mattjones]

That is a great demonstration that Scheme's problems are not Lisp problems. I'm hoping that we're about to see a lot more experimentation with new Lisp dialects.