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2011:

  1. Ray Kurzweil and Barry Ptolemy on the film 'Transcendent Man'
    Ray Kurzweil and Barry Ptolemy on the film 'Transcendent...

    with Barry Ptolemy and Ray Kurzweil on Mar 18, 2011

    Duration
    12 min
    Comments
    10 comments
    Rating
    * * * *

Barry Ptolemy