Yes. Since early teens I frame notes in graph paper notebooks in a kind of information system geography. This is not the same as a mind-map which is just hier

Yes. Since early teens I frame notes in graph paper notebooks in a kind of information system geography. This is not the same as a mind-map which is just hierarchy (an outline recast as cartoon bubbles and lines). When concepts lay out and interconnect like a periodic table of elements, symmetries, misalignments, or gaps suggest where you’re onto something, or perhaps the conception is mistaken, or more research is needed. These can prove quite dense, a single well woven page can take 50 powerpoint slides to unpack and bullet or diagram more conventionally. I use obsidian and similar markdown tools but the shape of a system or information is lost in most text tools. Excalidraw is useful, as is Kroki.io, for tying the two approaches together. But mostly Apple Pencil and Goodnotes w/ graph paper.