If this interests you, sci-fi author and astrophysicist Gregory Benford did a deep dive into the subject some years back after being put on a committee to try to decide how to mark a nuclear waste storage site as unsafe even if humanity collapses and written language is forgotten.
Maybe we should CNC in copper sheets at least the simple language wikipedia?
If this interests you, sci-fi author and astrophysicist Gregory Benford did a deep dive into the subject some years back after being put on a committee to try to decide how to mark a nuclear waste storage site as unsafe even if humanity collapses and written language is forgotten.
https://www.goodreads.com/book/show/2014020.Deep_Time
This is not a place of honor