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Just use this:

https://en.wikipedia.org/wiki/5D_optical_data_storage

5d is a bit dramatic but it is a femtosecond laser writing of quartz crystal that should, in theory, be stable for billions of years and can hold hundreds of terabytes.

Seems to be just what is needed.




Sadly it appears to be early-stage R&D vaporware.


It was early stage R&D vaproware in 2013 when I read about it the first time.

https://www.scientificamerican.com/article/data-saved-quartz...


That’s a shame. I saw it earlier on Reddit and read the wikipedia article, seemed promising.


Microsoft's "Project Silica" is in early production.




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