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This long-term data storage will last 14 billion years
(www.theregister.com)
This is a most excellent place for technology news and articles.
I don't think the point is that you can sue them if it only lasts 13 billion years, but the under current conditions it's projected lifetime is 14 billion years. Which is a very big number, meaning it's pretty much guaranteed it won't break in 100, 1000 or 10000 years.