The features described are nice, but are they nice enough to make up for Scala often using more memory than Java and being a bit slower? One data point: https:

The features described are nice, but are they nice enough to make up for Scala often using more memory than Java and being a bit slower? One data point: https://docs.google.com/open?id=0ByTAIYFOarh0cm9aSXlzc0NWaXc https://docs.google.com/open?id=0ByTAIYFOarh0cm9aSXlzc0NWaXc It is always about trade-offs, but you had the above with the much smaller functional language talent pool and I don't think I would want to use this are a core/shop language. If I was going to go functional, I think I'd go for Haskell GHC and get the functional lang benefits with better than Java performance. Scala is definitely a good alt. lang for a Java shop though :)