Does God play dice? Is reality slave to chance? British artist Tim O'Riley responded to his confrontation with quantum theory during a recent visit to CERN, the European laboratory for particle physics, with a video installation of two dice orbiting each other in an endless loop, postponing indefinitely the chance moment of their fall. The video is part of the “Signatures of the Invisible” exhibition at the Gulbenkian Museum in Lisbon, which runs until 19 January.

Credit: TIM O'REILLY