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I thought you might be interested in reading this web page: https://www.longecity.org/forum/videos/view-80-ray-kurzweil-on-3d-printing-and-the-future-of-currencies/?forcePrint=1&forceDownload=1&_k=880ea6a14ea49e853634fbdc5015a024&forceDownload=1&_k=880ea6a14ea49e853634fbdc5015a024 From, Guest