Why XPointers?
Traditional URLs are simple and easy to use, but they’re also quite limited. For one thing, a URL only points at a single, complete document. More granularity than that, such as linking to the third sentence of the seventeenth paragraph in a document, requires the author of the targeted document to manually insert named anchors at the targeted location. The author of the document doing the linking can’t do this unless he or she also has write access to the document being linked to. Even if the author doing the linking can insert named anchors into
