What exactly about NFTs are helpful in this usecase? What constitutes a memory? Is it just data? Why would you need a blockchain type solution? Socratic questions, not inflammatory.
Maybe by enabling the ability to have a variety of different media, (notes, tweets, pics, videos, etc.) all linked / connected via ledger, that could display on a digital frame & cycle through / play them
“A memory” could be any piece of media worthy of preserving (even a screenshot of something read on a smartphone, for instance)
A blockchain solution could be perhaps helpful because it would allow one to create a “chain” of memories .. in other words, it could make a record of each media piece added to the “ledger of collectibles” .. maybe even treat the collection as some kind of immutable package