[qurashee]

I'm surprised nobody has mentioned Microsoft's research towards "replacing" tape storage in the future. Have a look at Project Silica.

https://www.microsoft.com/en-us/research/project/project-sil...

[rowanG077]

Research like this has existed for decades. Cerabyte is a new company trying it again. The problem is that you need essentially a large and expensive optical lab to be able to read and write. This means you want to multiplex data carriers even more, and this it eats into bandwidth even more.