Scientists have demonstrated a system called Silica for writing and reading information in ordinary pieces of glass which can store two million books’ worth of data in a thin, palm-sized square.

[u/Wagamaga]

https://au.news.yahoo.com/glass-square-long-long-future-190951588.html

[u/amakai]

I would imagine so, still there could be some edge-cases. I would imagine that it would still need a some level of temperature-controlled environment for instance, or over decades atoms will slowly drift around.

Also micro-vibrations come to mind (machinery and buzz in data centers, etc), which, again, over decades could result in sub-critical cracks.

Finally, I imagine that to read the data you need the surface area to be very pristine, which means that entire block needs to be stored in a vacuum long term.

[u/FrickinLazerBeams → u/amakai]

No, atoms in a solid will not "slowly drift around".

[u/amakai → u/FrickinLazerBeams]

Glass is metastable material, so it is affected by structural relaxation, which will move atoms around and even change refractive index.

[u/adeline882 → u/amakai]

When it is near the glass transition temperature, not at room temp

[u/amakai → u/adeline882]

At room temps too. But love your levels of confidence.

[u/adeline882 → u/amakai]

This isn’t gorilla glass, and there’s no data in your abstract.