That's the theory in the article, that this silent corruption is happening all the time and it's just happening in unimportant places or ones that don't trigger a noticeable crash.

But why am I not seeing this when explicitly looking for it? If I run Memtest86 for 24 hours I certainly don't expect to see an average of 22 errors and just treat that as within spec. I expect to see no errors. Is it a problem with the memory tests we're using, do we need ones which just write data once and then wait a day to read and validate it rather than hammering RAM with reads and writes?