Humans have always had the need to tell. In the dark millennia of prehistory, people used fingers or made incisions on bones. For about 4,000 years, early civilizations developed elaborate numbering systems to record transactions for everything from business to astronomy cycles. The hand tools calculation appeared millennia later. Today the prodigious complexity of calculations, as well as the whole set of activities with no apparent relationship to numbers, is made by sophisticated “electronic brains” called computers. Experts are rushing to point out that a computer is a brain, is just another tool, another machine designed to reduce work or extend our dominion over the world.

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