What is Nil Punning?

What this episode covers

Nil punning is a feature of Lisp. It began when nil was both the empty list and the false value. Two meanings for the same thing led to the idea of punning. Lispers liked it. And now, Clojure carries the tradition forward. In Clojure, nil has different meanings in different contexts. Is it good? Is it bad? We explore it in this episode.

Distinct summary based on available episode metadata or transcript content.