I really don't see the problem with files becoming outdated. Even with NASA, it seems that eventually someone there (if given funds and a specific job to figure it out) could find ways to open those old files.
What I AM concerned about is the Digital Dark Age scenario. As an historian, so much of what we know about the past we know from things left behind. Well, so much of our lives and reality now exists virtually that historians of the future will have a very, very skewed interpretation of how we lived today. And that worries me. Much of what we are today will simply disappear.
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