资源与沉库的极限人口和工业资本所具有的自我再生产潜力构成世界体系中指数增长的原动力。由于它们具有生产潜力,社会鼓励它们的增长。我们认为,人口和资本具有结构性的再生产潜力。如果没有连续不断的物质与能量的输入,没有连续不断的污染和废物的排放,这些潜力便不可实现。人需要食物、水、空气和养料来生长,维护生命和生育。机器需要能源、水、空气及各种各样 The potential for self-reproduction possessed by the extreme population of resources and sinks and the industrial capital poses the driving force of exponential growth in the world system. As they have productive potential, society encourages their growth. We believe that population and capital have the potential for structural reproduction. Without continuous input of material and energy, without continuous pollution and waste discharge, these potentials can not be realized. People need food, water, air and nutrients to grow and preserve their lives and their children. The machine needs energy, water, air and a wide variety