I've just taken a terrific ride around the world, back in time and forward to the future.
I've studied the methods of Mesopotamian iron smelters, observed Italian craftsman manufacturing multi-coloured mosaics in glass, stood behind Henry Ford and then Eiji Toyada as they revolutionised the auto industry, and surveyed a planet-wide manufacturing network, or value chain, that is more complex and beautiful in its own way than I could have imagined.
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