Sonia Leber and David Chesworth, This Is Before We Disappear From View, 2014, 4–16 channel audio, metal, concrete, 25 minutes. Installation view of the 19th Biennale of Sydney (2014) at Cockatoo Island. Courtesy the artists and Fehily Contemporary, Melbourne. Created for the 19th Biennale of Sydney. Photograph: Sonia Leber and David Chesworth