Around 1957, French artist François Dufrêne, long associated with Lettrist and Ultra-Lettrist poetry,  started ripping off posters hung on the streets of hometown of Paris and present them framed and hung as paintings. He called his explorations, removal and repurposing as “almost geological infrastructures” that were constructed, on the street, by the different layers of paper. They were time-capsules of a living organism that was the city, a conversation in public spaces that was layered by time, by cultural evolution, by place. You can tell a lot from a city by looking at what we, as citizens and residents, leave behind as opposed to what we see above us in billboards, paid advertising, contemporary architecture, you name it. I didn’t know…