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In the past, mankind made leaps in technology only to have those advancements fizzle out. All you must do is look at the Roman, Greek, Egyptian empires. In South America, there were the Mayans, Incas, and Aztecs with their advanced understanding of science and astrology. All were conquered, or their knowledge has vanished from the face of the Earth.
Today technology changes every 18 months. Since the turn of the 21stcentury, advancements in energy storage, cyber infiltration, cyber security,...