Question: is clojure hard to learn?
Answer: clojure is hard to learn. very hard. ... Of lisps i know, 10 years of emacs lisp and some scheme/racket lisp, clojure is rather quite different from them, and introduced lots of clojure's own concepts, such as transducer, and clojure's metadata, clojure's “protocol”, clojure's refs and transactions, atoms, agents.