As I see it, no, we don't really-really know. The accelerated tests actually performed on them may (or may not) be reflective of longevity in the long time. A

As I see it, no, we don't really-really know. The accelerated tests actually performed on them may (or may not) be reflective of longevity in the long time. Are they "tougher" than other disks? Yes. Will they last 1000 (or only 100) years? We will see.