Racket really is an awesome language. When you want a LISP that you can optimize to get near-C performance, go with Common Lisp. When you want a LISP that doe

Racket really is an awesome language. When you want a LISP that you can optimize to get near-C performance, go with Common Lisp. When you want a LISP that does concurrency more concisely than Scala or Erlang, go with Clojure. But for literally anything else, you probably want Racket. Don't forget to add its ridiculously awesome continuation-based web server to your above description!