I am not overly familiar with Clojure, but is it possible to be expert at Clojure, and not be able to parlay that into some other JVM language job? It might be a bit depressing, but I would think that one could take a Java job in a pinch if one had one's back against the wall.
I think anyone who's an expert in any general-purpose programming language can find a way to parlay that into a job, since it's much easier for them to learn another language, but knowing Clojure doesn't help much for learning other JVM languages. My guess is an expert C++ programmer could pick up Java faster than a Clojure programmer.
