831
Microsoft develops ultra durable glass plates that can store several TBs of data for 10000 years
(unlocked.microsoft.com)
This is a most excellent place for technology news and articles.
In 10k years, there either won’t be anyone left to read them, or the technology at the time won’t be able to read them.
If you want something to last 1000 years you design it to last 10k. In 1000 years, the descendants of the ultra rich will come out of their bunkers with the technology to read these chips.
The question is will it be because we've advanced so far beyond that level of computing, or because we've had WW3 and are back playing with rocks and fire?
Some version of the latter is far more likely.