> red color is superior to blue It's always about context: if an A/B test show you that changing a button's color from red to blue increases conversion rates b

> red color is superior to blue It's always about context: if an A/B test show you that changing a button's color from red to blue increases conversion rates by 50%, than red really is superior to blue for this context. Same, if your developers are 50% more productive in Scala than in Java that Scala is a better language for you, same way that red really is superior to blue in the above. And I really like the dream of a "language agnostic-framework", though I know it's not really possible. It would be cool to have a Play framework which also supports Clojure or JPython or JRuby, as for some developer teams these languages might be superior to Java or Scala - but I know that the development effort would be huge*. But in the real world, 90% of good programmers will take Scala over Java anytime, even if they'll have to learn it! Heck, I'd take C# on mono over Java any day!