It's possible to make them typed with the stdlib[1]. Link also gives some reasons as to why they're untyped. Short answer is it started as a way to replicate Er

It's possible to make them typed with the stdlib[1]. Link also gives some reasons as to why they're untyped. Short answer is it started as a way to replicate Erlang in Scala[2]. [1] http://stackoverflow.com/questions/5547947/why-are-messages-to-akka-actors-untyped http://stackoverflow.com/questions/5547947/why-are-messages-... [2] http://article.gmane.org/gmane.comp.lang.scala/12988 http://article.gmane.org/gmane.comp.lang.scala/12988