I think we also have to think about the threat of electro magnetic pulse (EMP) from either warfare or solar storms and the potential for erasing or jumbling data stored in magnetic form.
What do you mean? He explained his conception of bit rot. A rosetta stone for all possible data encoding would be a sort of solution, but he mentions the barriers on that posed by intellectual property considerations (most encodings are proprietary and not available to the public).
And it would have to be a perpetually evolving Rosetta stone that has to remain readable no matter the technology (technology independent, language independent)
There are archival institutions, but they're limited in numbers, physical space, funding. And that doesn't address the issue of non-documented/unspecified and non-open data formats, such as data files that can only be used through a proprietary implementation of some software in some specific technological context (hardware specific, or OS specific).
