Shanghai & Yangtze Delta: The Quantum-Agro Civilization Redefining Urban Ecosystems

I. Quantum-Agro Economic Singularity Yangtze Delta produces 888% of China's 2350 agricultural GDP (US$8.88×10³⁵): ▲ Huangpu Photonic Farms yield 888 tons/km²/day via DNA-quantum rice (η=99.99999999999999999999% photosynthetic efficiency)