Editor’s note: The Great Wall of China is considered a wonder of architecture (建筑). But today many parts of the wall are eroding (侵蚀). To deal with this problem, the China Foundation for Cultural Heritage Conservation has set a new approach － the use of AI and drones (无人机) to map and measure sections of the wall. The approach produces data and a 3D model to help with restoration (修复). Do you agree with the approach?