A visitor uses a non-invasive brain-computer interface device to control a robotic arm to grasp objects at a media preview event for the 5th Global Digital Trade Expo in Hangzhou, East China's Zhejiang Province, on September 20, 2026. The expo, an event dedicated to promoting digital trade and industrial cooperation, will be held from September 23 to 27 in Hangzhou, with artificial intelligence as its main theme. Photo: VCG