Hard to separate
Digitizing Smell: Using Molecular Maps to Understand Odor
How can we measure a smell? Smells are produced by molecules that waft through the air, enter our noses, and bind to sensory receptors. Potentially billions of molecules can produce a smell, so figuring out which ones produce which smells is difficult to catalog or predict. Sensory maps can help us solve this problem.
https://ai.googleblog.com/2022/09/digitizing-smell-using-molecular-maps.html

This Neural Net Maps Molecules to Aromas
Sights and sounds are easily digitized, but scents have eluded researchers until now
https://spectrum.ieee.org/digital-smell


Seonglae Cho