Following the the BLM protests on the police scanner recently, I spent a day studying maps of Manhattan. What comes to mind here, is how some old roads remain like Broadway -> old postal road, that were laid in past times when the patterns of settlement were different from now. And also how parts of the grid have be repurposed into pedestrian only areas, as urban theory / demands has moved on from when the grid was made. It would be neat if something like this could generate patterns on top of patterns, to get these kind of historical layers.