I came across this article a few years back and had to share. Just how exactly does one convey danger of something to an audience thousands or millions of years into the future? From the article, “Sandia National Laboratories charged a panel of outside experts with the task to design a 10,000-year marking system for the WIPP (Waste Isolation Pilot Plant) site, and estimate the efficacy of the system against various types of intrusion. The goal of the marking system is to deter inadvertent human interference with the site.”
This is part of what they came up with, also from the article:
This place is a message…and part of a system of messages…pay attention to it!
Sending this message was important to us. We considered ourselves to be a powerful culture.
This place is not a place of honor…no highly esteemed deed is commemorated here…nothing valued is here.
What is here is dangerous and repulsive to us. This message is a warning about danger.
The danger is in a particular location…it increases toward a center…the center of danger is here…of a particular size and shape, and below us.
The danger is still present, in your time, as it was in ours.
The danger is to the body, and it can kill.
The form of the danger is an emanation of energy.
The danger is unleashed only if you substantially disturb this place physically. This place is best shunned and left uninhabited.
Go ahead and read the article. I find it fascinating, even if I doubt intelligent life on this planet can survive even thousands of more years with us humans running around, mucking things up.