Memory Transference

[KageTokage]

The lore is simply that literally everything in the universe is comprised of aether at the base level, memories included.

Therefore, it is possible to transfer memories or even copy them (Provided you have the tech to analyze/reproduce the same wavelengths) as long as you have the proper vessel to contain them.

White auracite is noted as being very effective at containing aether of all sorts, be it soul, memories, or otherwise, which is why it's been used to trap Ascians, form the spirit vessels that took the Scions home, and was the key component of the Oversoul system in the Weapons among other things.

It's also evidently possible to transfer forged memories onto an individual, as the unsundered Ascians had been "elevating" sundered souls to fill the empty seats of Convocation by planting their memories of those particular individuals into them...which has some unusual implications we still don't really understand the full extent of, though Fandaniel's backstory is liable to clear that up in 6.0. The memories in his crystal were extremely garbled and incoherent compared to the others, which could mean all the manner of different things...