All embeddings of hyperbolic space into eucleadean space suck. You can't preserve distances and areas between them. Trees live in a hyperbolic space so every visualization of trees on a screen will suck in some way.

This simple math fact is the reason why all grand hyperlink projects from 1960 to 2010 couldn't work, e.g. Xanadu.

Worse, in small examples with fewer than a hundred nodes it looks like it is a real improvement over linear text with jumps - we are after all now using _all_ the possible screen real estate.