Those linkable items not only must have some qualities that make the writer want to connect them, they also must exist in separation, apart, divided. As Terence Harpold has pointed out, most writers on hypertext concentrate on the link, but all links simultaneously both bridge and maintain separation. This double effect of linking appears in the way it inevitably produces juxtaposition, concatenation, and assemblage. If part of the pleasure of linking arises in the act of joining two different things, then this aesthetic of juxaposition inevitably tends towards catachresis and difference for their own end, for the effect of surprise, and sometimes surprised pleasure, they produce. (Landow 1999, p. 159.)
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