A N E M O I A .

Anemoia (noun) /ˌænəˈmɔɪə/.

A temporal-empathic phenomenon in which a sentient being experiences profound nostalgia for a time or era they have not personally lived through—often triggered by exposure to chronology-resonant artifacts or collective memory streams. In advanced civilizations, anemoia is studied as a side effect of temporal drift, where consciousness grazes echoes of alternate timelines or ancestral data imprints stored in the sub-quantum lattice of spacetime.