Because most languages don't have a full interactive REPL like for example Common Lisp has. The Python REPL for example is a joke compared to it. Clojure is ver

Because most languages don't have a full interactive REPL like for example Common Lisp has. The Python REPL for example is a joke compared to it. Clojure is very closely there, but not quite yet. Live image editing is just pure bliss.