Hyperlinks are not really new inventions, but merely a new way to deliver the printed book's functions of page-turning and reference to marginal annotations.  Notice, however, how the decision to follow a hyperlink can lead to another hyperlink which takes you further from your original text's line of argument?  Were you to follow it, would you really be reading what I wrote, or what you co-wrote with me, since organization of writing's parts is part of "writing"?  Fortunately, I have resisted the urge to install such a divergent hyperlink in this hyperlinked text.  Please go back now.  Thanks.  Click here if you dare.