I've been led to understand that scent is the strongest memory trigger. Smells can resurrect moments for me that I scarcely knew even existed. Conversely, I have chased after and clung to aromas that renewed feeling and memory for times and people that were fugitive. What strong emotion can be held in the weft of a lover's shirt, pressing them closer to you, until their perfume finally fades away.
Has anyone ever tried to create a recording device for the facsimile of scent? We have archived sound and sight, but beyond the labors of the perfumier, which in my experience is something quite different, we have no record to trigger our olfactory sense and the mental and emotional experience that follows.