TEXT: SYDNEY, AUSTRALIA - SEPTEMBER 03:     Austrian British artist Nomi Lakmaier is bound,immobilised and lifted by 20,000 multi-coloured party balloons during a nine hour performance on the stage of the Concert Hall at the Sydney Opera House on September 3, 2017 in Sydney, Australia. The artwork titled 'Cherophobia' explores notions of desire, restraint and control. It has been staged only once before in London as part of the Unlimited Festival.  (Photo by Cameron Spencer/Getty Images)