[tangentstorm]

Happily, Nelson's patent has finally expired. :)

https://patents.google.com/patent/US6262736

[joshgrib]

I was thinking this was a data structure, but based on the patent it's actually more a user interface design to explore data

> What is claimed is:

> 1. A method for visualizing data on a display, comprising:

> ...

In other words it seems like it could replace a spreadsheet as a way to explore data, but not _necessarily_ by storing the data any differently