I've read both yr emails Patrick, and agree (to the degree that I understand you ) that these different cyber environments you mention might produce very different types of multi-dimentionsal structures, and ones impossible in print. However structure isn't the same as narrative, while navigating information seems to be something different again, so I'm not sure that you can necesarily talk about them all in the same breath. I'm intrigued by your use of the word narrative here which seems to imply some kind of story element: of course once you start to push narrative to its limits you often end up with the breakdown of narrative and the predominance of poetic (the one exists in the other). But it does seem to me that the kind of multidimensional environments you describe could push narartive into much more complex spatio -temporal realisations and reader /writer relationships than we've previously experienced, and that these structures could still be recognisable as narratives, however overlayed and multiplicitous they might be.