re: #27 Interesting Times
We desperately need a “knowledge” equivalent of the Svalbard Global Seed Vault. Have no idea what form it should take, though…
re: #28 freetoken
Clay tablets.
They seem durable.
The need to produce multi-millenial warning signs on high-level nuclear waste storage sites led to some interesting study of long-term information transmission. There were Sci-Am articles around in the ’80s IIRC. Can’t hang here at the moment.
Also check out “Clock of the Long Now” for some perspectives.