Surprised nobody has mentioned the use of artificial DNA [0] in archival (e.g. Adaptive DNA Storage (ADS) Codec). Companies [0] exist to create the DNA today.

Surprised nobody has mentioned the use of artificial DNA [0] in archival (e.g. Adaptive DNA Storage (ADS) Codec). Companies [0] exist to create the DNA today. Within a small volume and with an approach of high redundancy and generation of multiple copies (e.g. errors in reading are overcome by reading many copies and using probabilistic means to resolve). Still a ways to go, but DNA within biology has already proven itself to be resilient over long periods of time (oldest sample ever sequenced was 1.65M years ago[2], very compact in physical form for storage and easy to distribute/store many redundant copies. I've personally wondered what other types of biological processes could be mimicked to help with encryption (perhaps using some sort of enzymatic process to act as a gatekeeper to reading the DNA - this is totally outside of my expertise, so could be way off track). But fun to think about, nevertheless :-) [0] https://www.scientificamerican.com/article/dna-the-ultimate-data-storage-solution/ https://www.scientificamerican.com/article/dna-the-ultimate-... [1] https://www.twistbioscience.com/resources/video/how-does-dna-data-storage-work https://www.twistbioscience.com/resources/video/how-does-dna... [2] https://en.wikipedia.org/wiki/Ancient_DNA https://en.wikipedia.org/wiki/Ancient_DNA