By building, say, cooperatively scheduled systems of active objects (actors) accepting arbitrary messages Smalltalk style, like Windows 1. Or preemptively sched

By building, say, cooperatively scheduled systems of active objects (actors) accepting arbitrary messages Smalltalk style, like Windows 1. Or preemptively scheduled systems of typed ones, like Symbian. It’s not like the classic approaches are that much simpler, is my point.