10 Neural Networks

The human brain has 100 billion neurons, each neuron connected to 10 thousand other neurons. Sitting on your shoulders is the most complicated object in the known universe.

—Michio Kaku

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Khipu on display at the Machu Picchu Museum, Cusco, Peru (photo by Pi3.124)

The khipu (or quipu) is an ancient Incan device used for recordkeeping and communication. It comprised a complex system of knotted cords to encode and transmit information. Each colored string and knot type and pattern represented specific data, such as census records or calendrical information. Interpreters, known as quipucamayocs, acted as a kind of accountant and decoded ...

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