tl;dr: In 1963, Jerry began doodling a map of an imaginary city during a boring job, set it aside in 1983, then resumed decades later — it now spans 4,000+ 8x10 panels arranged in a rough circle. The project is governed by an evolving deck of ~100 instruction cards that dictate what to paint, collage, or alter on each panel, along with rules about layers (paint bands, collage, "city squares," Void, Red Dimension, etc.) that progressively replace earlier work. The result is a rule-based, semi-randomized generative art system executed by hand over 60+ years.