I came across something touching today: The Pennsic Runestone Project. Members of the Society for Creative Anachronism will be erecting a 9 ton stone in memory of those members who have passed before. A community carving project, members will be able to carve a section of the stone with artwork.
Unlike any other media, stone memorials present a permanent witnesses to lives lived, a thousand years ago. No doubt, a 9 ton stone will present a permanent witness to our lives, a thousand years from now. But what will people make of it?
It's an interesting thought how future archaeologists might interpret a runestone in Butler, Pennsylvania, with carvings in memory of Thorbjorn, or Leif Ivarson. Our digital media won't last that long, neither will newspaper obituaries. Our houses, or skyscrapers won't be around too inform future archaeologists. And our current inhumation techniques don't leave bones and grave goods to examine.
But that SCA runestone will still be standing.