Even if each of those women has only two children, population will coast upward under its own momentum for another quartercentury.
即使每位妇女只要两个孩子，人口也会根据自己的势头再向上升二十五年。
2
That older system also was working badly. It was restricting purchasing power to a shrinking moiety of the population, and losing its progressive momentum very rapidly.
更古老的系统也不顶用，它将购买力限制在一组数量不断缩小的人群，快速失去前进的动力。
3
Criticizing Marxs thought of technology, North thinks that among momentum of system transition, population growth is the most ultimate one.