It's also why ZFS requires the use of ECC memory in the official documentation - ZFS spent great efforts building redundancy and error-checking capabilities as

It's also why ZFS requires the use of ECC memory in the official documentation - ZFS spent great efforts building redundancy and error-checking capabilities as part of the filesystem, especially for guarding against silent data corruption, even at the expense of performance. But it would be useless and greatly decrease the benefits of these features if the memory can fail silently. Also, hitting by a beam of cosmic ray is not the only way that the bits in RAM can be flipped, dynamic RAM has inherent instabilities like row hammering, or can fail early due to manufacturing defects.