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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.
I can already see the future where warlords fight over the pretty glass buried in vaults across the land so they can whittle it down into jewelry they use to decorate the skull chalices of their enemies in order to pour out libations to the magic forces from the sky that govern their lives...