Also disingenuous is the suggestion that you need to explain function invocation in Python, but not in Clojure. Maybe that falls under the umbrella of explaini

Also disingenuous is the suggestion that you need to explain function invocation in Python, but not in Clojure. Maybe that falls under the umbrella of explaining s-expressions, but I don't think there's a notion of "function invocation" in s-exprs (only in language which use s-exprs as their syntax). Strange, too, that infix notation (familiar to anyone who's taken arithmetic) needs explanation in Scala and Ruby, but prefix notation gets a pass in Clojure.