How inefficient is Ruby really? This tool surprised me. Can any Ruby-ists chime in? http://therighttool.hammerprinciple.com/statements/programs-...
(The Shootout is not the One True Measure of speed... but it isn't meaningless, either.)
Generally the only thing this really means though is that you wouldn't want to do hard-core computation in pure Perl/Ruby/Python, hence things like NumPy. [1]: http://shootout.alioth.debian.org/u64q/which-programming-lan...