I guess you were having some troubles and asked around in #scala. A huge amount of work in Scala is left for the compiler, all the niceties and features put tha

I guess you were having some troubles and asked around in #scala. A huge amount of work in Scala is left for the compiler, all the niceties and features put that load on it. So while it makes life a lot more easier for you it also has more work to do. Anyways compile times have improved significantly in Scala 2.11 but more importantly, incremental compilation has landed.