I need to read the rest of this discussion a bit later, but a quick comment in case anyone is still here: I see mind maps and tables of contents as different U

I need to read the rest of this discussion a bit later, but a quick comment in case anyone is still here: I see mind maps and tables of contents as different UI views of the same data. Years ago I used a product on Windows called Inspiration which let you flip between the two views: a hierarchical/collapsible outline, and a graphical map showing boxes and lines (or such). Since I found myself using the collapsible outline feature much more than the pictures, but wanted many more features and support for a theory of knowledge, I wrote and am working on adding features to: http://www.onemodel.org http://www.onemodel.org It makes an internal knowledge graph as one uses the product (stored in postgres, runs fast). It builds an object model on the fly as a side-effect of using the product, using relationships, numbers, etc as knowledge at an atomic level where words are secondary. The best info organizer (for my style at least) that I know of, though (so far) less feature-rich than many products. I hope the About page at that link explains the present and future well.