Ted Nelson on Zigzag data structures

Ted Nelson explains and demonstrates ZigZag, his data structure and interface idea for navigating information along intersecting dimensions. It is a first-hand look at one of Nelson's long-running ideas.

HN people share it as a curiosity from Ted Nelson, and one commenter holds it up as a UI idea that is interesting but should never be implemented.

“a lot of good and interesting ideas that should never actually be implemented.”