Scala’s libraries build on this foundation to provide outstanding support for concurrency and parallelism, for example through the actor programming model and the built-in parallel collections ...

Scala is essentially the C++ of high level (ergo, memory managed) languages on the JVM. It supports many paradigms equally, and due to this, it has sacrificed the "simplicity" of the language.

If you have the skills, Go, Scala and Ruby are the programming languages most likely to get you job interviews, although JavaScript, Python and Java are the languages most used by developers.

In a blog post this past spring, Burns touted Scala’s programming characteristics: “Scala can be thought of as a better Java. To start with, you don’t need as many semicolons.