○ The 3rd Delta Four Young Architects "Marathon" Forum, organized by the Greater Bay Area Innovative Design Lab of Shenzhen University, was held on November 22, 2025 at the College of Architecture and Urban Planning, Tongji University.

○ The forum was jointly conceived and convened by architects Zhang Bin and Doreen Heng Liu, both of whom combine architectural practice with theoretical research. Bringing together young architects and architectural scholars from the Yangtze River Delta and the Pearl River Delta, the event crossed regional boundaries and, from the perspectives of a new generation of practitioners and observers, collectively re-examined the contemporary issue of the publicness of infrastructure.