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After all, at the beginning there was the man who could make stone tools, and then along came the man who made bronze and so the first man had to either learn to make bronze too, or get into a different line of work completely. And the man who could work bronze would be put out of work by the man who could work iron. And just as that man was congratulating himself for being a smarty-pants, along came the man who made steel. It’s like a sort of dance, where no one dares stop because if you did stop you’d be left behind. But isn’t that just the world in a nutshell?