The title of the article is misleading--probably due to translation from French. It's really about a gifted Chilean photographer, Alejandro Olivares, who is interviewed in the article. "6" refers to six younger Chilean photographers recommended by Olivares.
His major work is called Living Periferia, a photo-essay, which has captured the hellish reality of life in a suburb ("Periferia" literally means periphery) of Santiago, one of many that are emerging under the reign of neoliberalism in the outskirts of metropolitan areas around the world. The 28 slides that make up Living Periferia can be accessed here from burn.
This work dives in a forgotten world, where many times not even mailmen are allowed in. It’s a world that goes beyond poverty. Wide ghettos in the further corners of Santiago where the State has managed for years to dump what they would rather not see. What investments must never see. What rich people should better keep ignoring.