Early one December morning, under the searing heat of the southern sun, British sculptor Antony Gormley stepped onto the surface of a vast, million-year-old salt lake in one of the remotest parts of Australia. He was there to install a remarkable art work that would stretch over ten square kilometres and consist of more than fifty sculptures. Itwas the final act in an exhausting six-month process that had seen him take naked body scans of the residents of a nearby town and produce‘Insiders' - alien-like sculptures of the inside of each person - which he was about to place across the flat salt- encrusted expanse of Lake Ballard, Western Australia.