Well, imagine if you could represent all your data as JSON, rather than a complex hierarchy of objects and methods, and the language was designed around making that kind of data super-easy to work with.
Then imagine that you could represent your code as JSON and also that a database existed that let you store and build queries on JSON directly (i.e., Datomic).
Come back to me when there's a standard for JSON schemas so my data can be actually strongly-typed + verified.
JSON was used in the original article as a placeholder for Clojure forms. You can (optionally) get strong typing using Clojure records[1] (see defrecord) or using core.typed[2]. Datomic also lets you specify types[3].
I'm not "coming back" to you, as I don't appreciate your snarky, know-it-all tone. I'm replying for the benefit of others reading who may not be familiar with Clojure.
[1] http://clojure.org/datatypes