Earlier quoted context omitted.
The Planiverse: Computer contact with a two-dimensional world - by A.K. Dewdney > A mind-bending, paradigm shifting visit with Yedred, a denizen of the 2 dimensional Universe. It is written so that the physics comes through very easily for those without science training. A university student discovers that this being Yendred is communicating with him through his computer. There begins a lively dialog as both the 2D Y…
I read Magister Ludi or The Glass Bead Game several times in my younger days. I was a Hermann Hesse fan. I echo the recommendation but would add what I found most appealing about it is the idea that all knowledge is related. Once players study for years, they realize mathematics and music theory are related. Architecture and geometry are related. By analogy all knowledge is related and one can glide from one concept…
That said, these days I mostly just hack at 3D designs using OpenSCAD using either BlockSCAD or the nascent OpenSCAD Graph Editor.