Video of ceramic storage system prototype surfaces online — 10,000TB cartridges bombarded with laser rays could become mainstream by 2030, making slow hard drives and tapes obsolete::Ceramics-based storage medium consumes very little energy and lasts more than 5,000 years, creators say
As far as I know, there is 1 storage technology that has survived wars. Paper.
Say that to the library of Alexandria.
Yes, but paper isn’t information dense and is highly susceptible to even the smallest amount of moisture in the air.
Paper is notoriously easy to destroy in conflicts
There’s another, better one: stone carvings.