Marker explains: ‘Owls at noon, night birds in the day, things, objects, images that don’t belong, and yet are there. Leaflets, postcards, stamps, graffiti, forgotten photographs, frames stolen from the continuous and senseless flow of TV stuff (what I’d call the Duchamp syndrome: once I’ve spotted 1/50th of a second that escaped everybody, including its author, this 1/50th of a second is mine).