That makes me wonder though, if i send a message to the same object from two different senders, will the first message affect the outcome of the second? If not then there is plainly little difference between the two, as either action gets a new pristine instance. All in all, this seems to be a whole lot of syntactical hair splitting.
Checking some links to Kay's responses elsewhere, i get the impression that unless we basically toss the notion of a programs as a singular compiled file of binary, and replace it with some kind of abstract notion of work that can happen on a single computer, or across the net as a whole, the distinction between a message and a method is academic at best.
Because for message as a concept to make sense, it has to be seen as someone standing on a rooftop shouting "can someone please hit that nail?!", and then wait around until someone shouts back "done!".
Without that you just end up with a carpenter talking to himself "hit nail, done, hit nail, done, hit nail, done".
