Yoichi Ochiai and Japan's Vision of Expo Citizens in the AI Era

Media artist Yoichi Ochiai asserts that Expo 2025's true legacy lies not in the pavilions themselves, but in the 29 million visitors who experienced breakthrough AI technologies and digital identity innovations during the world's largest recent exposition. The null² signature pavilion, designed by Ochiai and closed on October 13, 2025, after 184 days of operation, welcomed approximately 600,000 visitors who encountered real-time AI-generated digital avatars of themselves through the "Mirrored Body®" technology platform.