"The chemical structure of a molecule tells you almost nothing about its odour. Two chemicals with very similar structures can smell wildly different; conversely, two vastly different structures can produce almost identical odours."
"To researcher Alex Wiltschko, it was the smell of summertime in Texas: watermelon, but more precisely, the boundary where the red flesh transitions into white rind. It was a molecule that nobody had ever seen before."
"Understanding and digitizing smell is a tall order, as molecule 533 shows. If you looked at the structure, you would never have guessed that it smelled this way."
"There are no obvious parameters in smell like there are in vision or sound. It's a real challenge to make predictions about smell that researchers are still grappling with."
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