Personally, I think the mechanics of memory can be universal, but the "memory structure" needs to be customized by each user individually. What gets memorized and how should be tied directly to the types of tasks being solved and the specific traits of the user.

Big corporations can only really build a "giant bucket" and dump everything into it. BUT what needs to be remembered in a conversation with a housewife vs. a programmer vs. a tourist are completely different things.

True usability will inevitably come down to personalized, purpose-driven memory. Big tech companies either have to categorize all possible tasks into a massive list and build a specific memory structure for each one, or just rely on "randomness" and "chaos".

Building the underlying mechanics but handing the "control panel" over to the user—now that would be killer.