Clojure: If Lisp is so great, why do we keep needing new variants?

Clojure: If Lisp is so great, why do we keep needing new variants?

The one thing that Lisp programmers can agree on is how much better Lisp is than C and similar languages. I was talking last week to some programmers who use the Clojure version of Lisp and it made me wonder “If Lisp is so great, why did this guy have to build a slightly different version instead of building a popular application program in an existing version of Lisp, such as Common Lisp?”

Interesting discussion in the comments