[onnoonno]

In a way, message passing using the usual way, methods, means TWO messages are passed: The parameters and the return value.

I think that obscures the better parts of the OOP view quite a bit.

[kazinator]

Also, method calls (that return) are really two calls, in a way: the call which passes the arguments along with a continuation, and then the call to the continuation which returns the value. :)