I am not sure about most of the good ideas. I would say it is "enough of the good parts with syntax people can relate to". People are re-discovering lisp all t

I am not sure about most of the good ideas. I would say it is "enough of the good parts with syntax people can relate to". People are re-discovering lisp all the time. The nice things are still seemingly CL-exclusive; Conditions and restarts, proper macros (getting adopted in many languages NOW, about 30 years later), multiple dispatch OO. And first and foremost: proper interactive development. Using a python repl (or even a notebook) I have the feeling I get all the frustrating bits of the repl experience without any of the good parts. With very lackluster performance to that. I was kind of tired of not being impressed by new languages. Clojure and Erlang were the first ones in a very long time where it was the language (and not any additional libraries) that made me go "Wow. This is really cool". Now, I still write most of my code in guile scheme and occasionally ocaml, but not without at least glancing once or twice at Erlang.