JRuby's really revived my love of Ruby. It's fast, it's powerful, and it's much easier to extend than CRuby. Jruby 9k and Truffle are both promising some pretty

JRuby's really revived my love of Ruby. It's fast, it's powerful, and it's much easier to extend than CRuby. Jruby 9k and Truffle are both promising some pretty insane speedups, as well. The JVM boot time is a bummer, but beyond that, there's not much to complain about.