Since Clojure is not a Lisp in the narrow sense, this is a useless question.<p>If Lisp means something broad, then we would list very different languages: Logo, Dylan, Julia, R, Javascript, Racket, ACL2, ...  - again that would be a useless question.<p>Also, if GNU&#x2F;Linux is so great, why do we keep needing new distributions... if Perl is so great, why do we keep needing new scripting languages? ... if the Porsche 911 is so great, why do we keep needing new variants?