from what i recall (no documentation link, but it's been posted here before) strengthening is more about making associations/connections for the things that are important. so if you have CPU bound batch jobs that run each night for identifying new connections between clusters of data... it seems like it'd be pretty analogous. it's not like things we 'forgot' weren't stored, or somehow dropped from memory; we just couldn't access it when we needed to later, and once reminded we're fully aware.

there's also been studies on people who suffer a traumatic experience; if they're deprived sleep following the event then the memories are less severe/traumatic.