I find DNA storage plays really interesting. Will be fascinating to see what Microsoft[1], Iridia [0], etc ... solutions evolve into.

"two major problems of traditional storage devices: data density and durability. One of the densest forms of storage is tape cartridges, which house about 10GB/cm3. Iridia is on a path to having a storage device that could store 1PB/cm3 and reduce latency by 10–100 times compared to magnetic tapes. The other problem that Iridia is solving is durability. Rotating disks tend to work for 3–5 years, while magnetic tapes for 8–10 years. Because DNA is extremely durable, Iridia’s technology on the other hand has an estimated half-life of more than 500 years."

[0] https://outline.com/a97xFX

[1] https://www.microsoft.com/en-us/research/project/dna-storage...