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There is no verified, publicly available evidence that any UAP represents non-human (extraterrestrial) technology; documented cases are explained by prosaic causes or remain unresolved for lack of data.
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The Giza-area pyramids were built using a now-vanished branch of the Nile (the Ahramat Branch) as the primary transport route for heavy materials, with stones moved by boat and human-powered sledges/ramps rather than any lost or exotic technology.
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