Ars Technica featured an article about a year ago which asked whether Clojure (or a couple of other languages) could overthrow Fortran as the language of scientific computing. It was kind of an odd article, and now Peter Fraenkel has written an excellent rebuttal. As he points out:

• Ars Technica notwithstanding, Clojure, Haskell and Julia are not locked in competition to replace Fortran.
• Ars Technica notwithstanding, Fibonacci sequences may be something we learned about once, but it is difficult to disguise their irrelevance to scientific computing.