In Vernor Vinge's Deepness In The Sky, there really are code archeologists, as it's often simpler to find programs than to write them from scratch. They believ

In Vernor Vinge's Deepness In The Sky, there really are code archeologists, as it's often simpler to find programs than to write them from scratch. They believe that the Unix epoch (since extended many times over) dates to the moon landing (approximately correct), since the exact historical explanation has been lost.