But bit flips may not be noticed any time soon in the disk cache, and when they are later noticed, may be wrongly attributed to disk failure. It's a different f

But bit flips may not be noticed any time soon in the disk cache, and when they are later noticed, may be wrongly attributed to disk failure. It's a different failure mode than a bit flip in some source code that you are about to compile (which is far less likely to happen, due to that source code being a much "smaller target").