Stonework and fire were proto-general-purpose technologies, meaning they were pervasive, in turn enabling new inventions, goods, and organizational behaviors. General-purpose technologies ripple out over societies, across geographies, and throughout history. They open the doors of invention wide, enabling scores of downstream tools and processes. They are often built on some kind of general-purpose principle, whether the power of steam to do work or the information theory behind a computer’s binary code. The irony of general-purpose technologies is that, before long, they become invisible and
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