created Sunday, 2013-01-27 T 20:35:17Z
updated Sunday, 2013-02-03 T 18:25:28Z
Two problems with hyperlinks as we use them is that they are only where the document's author thought they would be useful & that they lead to where the author thought would be useful, nowhere else. In fact, there are many reasons a person might select a word or phrase. They include:
We needn't limit selections to text...
We can do some of these things with HTML links or with modern search engines, but not all of them, & even those we can are not done well.
Can we achieve these features with the link feature of existing HTML, maybe by following some authorship conventions or with some automated pre-processing? Or do we need another technology?
At least gloss & cross index are part of Vanevar Bush's vision of memex. This is clear when in "As we may think", Bush says:
When the user is building a trail, he names it, insets the name in his code book, and taps it out on his keyboard. Before him are the two items to be joined, projected onto adjacent viewing positions. At the bottom of each there are a number of blank code spaces, and a pointer is set to indicate one of these on each item. The user taps a single key, and the items are permanently joined.
(You have to overlook the implementation & user interface details that Bush mentions.)
Most or all of the features I mention are part of Dr. Ted Nelson's vision for hypertext in Project Xanadu.