The key word is letters. Physical, printed letters that a historian in the 2400s can physically hold and read. Digital communications will decay and vanish bey

The key word is letters. Physical, printed letters that a historian in the 2400s can physically hold and read. Digital communications will decay and vanish beyond repair, leaving our current era's ephemera irrevocably lost to the ages. http://howicode.nateeag.com/data-preservation.html http://howicode.nateeag.com/data-preservation.html