The topic is: Is the Web really exceptional? Or is it Yet Another Communications Medium? Or something else?
I’m probably going to say that it’s exceptional – that is, unique – in some important ways:. It’s hard to find another medium that works well at virtually every scale. It’s hard to find another medium that lowers the hurdle to global communication so far (although posting something that’s accessible to the world hardly means that the world will access it). And hyperlinks are unique and important.
Of course, it’s not clear what the consequences are of those exceptional characteristics.