I would like to ask a question to the participants of this thread:
I will follow the Maya example: Suppose that over the next five years we find that there is a really important astronomical change that have a significant impact on humanity (largely destroying our civiización), that really shows that there are cycles of 5,200 years, as said Mayas.
How would we do to inform our descendants of this change in the future and in 5200 years?
What would our descendants think about , after 5,000 years, the information that we have designed to warn them?
My oppinion is that the only ways to do it is by ...metaphors and they pass it on via one oral ... or printing it on he stones...I cannot see any other else.