> Scala has a complex type system, which from what I understand many Scala developers don't fully understand or utilize it. "When we say that a language is exp

> Scala has a complex type system, which from what I understand many Scala developers don't fully understand or utilize it. "When we say that a language is expressive, we mean that it is easy to use. When we say that a type system is expressive, we mean that it isn't." - Gilad Bracha