3 ms·

They should come with a cave for storage, else wind will erode the inscriptions. Running water will destroy them too. Even the cave may collapse on it.

• ludamad 5y ago
  A continuous revelation is more sustainable
• bjowen 5y ago
  Yep, plenty of gravestones are weathered to the point of illegibility after 100 years. Pick that mineral carefully. Or maybe go with a ceramic?