The Ghost Shorelines of Chicago
Chicagoans say the streets that break the grid — Clark, Milwaukee, Elston, Archer, Ogden — were trails along the beach ridges of a glacial lake. I asked Claude Fable 5.1 to help me test it with lidar: 135,010 samples along 6,750 km of road. The legend is mostly wrong, two corridors are spectacularly right, and the whole thing became a poster map and a short film.