> All media other than paper and stone will become extinct

Somewhat tangential...

I once worked for the national archives. Unlike libraries, the archives typically have the only copy of a specific piece of data. So if the lose the data, it is lost forever. My mission was to figure out how to deal with information storage in a millennial perspective.

There are tons of really interesting ways to store data. I think my favorite was printing QR codes on microfilm and then storing the film in an abandoned coal mine on Svalbard. The first frames on each roll with come with source code and instructions on how to decode the data.

FWIW; my recommendation was 3-way replicated object storage, until more stable form of storage presents itself and becomes reasonable.