The history of civilization is really a tale of data storage. We’ve come up with an endless list of solutions for passing along culture and knowledge—from cave paintings to hard drives. But each solution is imperfect: books can burn (though we have learned how to decode some charred scrolls), monuments weather away and even magnetic tape or discs will eventually fail. While DVDs seem like a long-lasting solution, they’re not. And they can only hold a few terabytes of information, but the world’s technology produces exabytes and zettabytes of data every year.