把这一句，留给此刻的你
If you take all the factories in the world today, they could make all the parts necessary to build more factories like themselves. So, in a sense, we have a self-replicating industrial system today, but it would take a tremendous effort to copy what we already have.
如果你把当今世界上所有的工厂都考虑进去，他们就能生产出所有必要的部件来建造更多像他们一样的工厂。所以，从某种意义上说，我们今天有一个自我复制的工业体系，但要复制我们现有的体系需要付出巨大的努力。