3 ms·

And how many did they fail to read?

• ChuckNorris89 4y ago
  The ones where the cavemen forgot to engrave checksum data.
• danielheath 4y ago
  Of the ones that were stored appropriately, virtually all are still readable. Whether the format it was written in is still comprehensible could be a more pertinent question.
• bluGill 4y ago
  A fair number only fragments remain. Probably most, though I'm not an archaeologist.