Rod Johnson has made a splash in the Scala community with his ScalaDays 2013 keynote in New York. He listed examples of Scala being opaque and hardcore FP folks communicating in Haskell as an obstacle to widespread adoption, and called for stability and understanding of "the average programmer." Rod pointed to the qualities of Java which keep it the mainstay programming language. The community response varied. We gather a panel of experienced Scala practitioners to debate Rod's keynote ideas with Rod himself!
-- SF Scala