> I do think that some strongly typed languages make it too difficult to step outside the type system; in Scala I have to do something like (x.asInstanceOf[{def

> I do think that some strongly typed languages make it too difficult to step outside the type system; in Scala I have to do something like (x.asInstanceOf[{def foo(): String}]).foo() whereas in Python I can just write x.foo() Have to make an explicit cast with a structural type? Surely you can do better, like, say, a trait. > I'm talking about casting, calling a method that the type system doesn't know is present. I think a larger example is necessary to see how you ended up in such a situation, but I suppose it's off-topic...