I link to this book, not because I've read it (though I may pick it up eventually) but because I find its central question fascinating. How can we reliably communicate messages across millenia to our descendants--for instance, about the dangers of nuclear waste sites? As many have pointed out, Egyptian attempts to ward people away from sacred sites didn't go so well.

I'm not sure the image on the left will cut it. It looks like "Diamonds! Just under here!" to me.

Interview with Joanna Macy of the Nuclear Guardianship Project for the Responsible Care of Radioactive Wastes here.

I guess maybe we should have thought about how to get rid of it before we made it.