I'm sure it's a decent language. It's that I have only so much learning time available and Ruby/JRuby , JS and ObjC seem like they would be a more practical use

I'm sure it's a decent language. It's that I have only so much learning time available and Ruby/JRuby , JS and ObjC seem like they would be a more practical use of it. If I wanted to learn something for personal interest I would probably want to do Scheme,Haskell or Go.