Written by from Liu Yiduo  In 4040 AD, the Gengchen year of the Chinese lunar calendar, the Flying Dragon soared in the heavens. Silicon-based alien warships tore through the atmosphere, unleashing biochemical capsules carrying corrosive agents—all intercepted by the "Dongfeng" Type 1 nanometer nuclear bombs. Yet acid rain continued to gnaw at our world. Once-crystal-blue oceans churned with murky foam; lush forests withered into charred wastelands. The blue planet that once
