information-forest

You should be able to instantly share a browsing session with somebody and invite them into the rabbit hole.

This browser should present entire paths of potential searches to explore.

I should be able to scroll through the history of my browsing as an enormous branching graph that I can annotate, travel around, share with others, and version.

You should be able to easily see connections between all of the web pages you have open at once, any subset of them, and explore them / navigate through them visually.