As I keep saying, this is a fundamental limitation of the web, which shows you leaves on trees. What you want is the inversion of that as a dynamic DAG in 3d. This would be the killer app for VR.
Huh? How could VR possibly get rid of "the same information, repeated over and over again"? The problem comes from limited research (fast & cheap, not good), not HTML presentation. VR is not going to help with that, as it's not going to magically replace Google (which already indexes books anyway).
Because VR makes it easier to look at the structures like the branches of the tree. You can put this on a screen too, of course, but from a user interface point of view it's a bit like looking at the world through a letterbox.
The 3d-ness of VR makes it easier for people to maintain a persistent mental model of a virtual environment than that which can be presented through a single screen, and that facilitates the presentation and navigation of complex structural information in 3 dimensions.
