I love perfumes. Some perfumes. I hate others. But I feel strongly about scent.
I once tracked my wife through the university campus because I could tell she visited the physics lab I worked in and I could smell which way she went and caught up with her 5 minutes away.
I thought I was good at smelling things but you, sir, take the cake π
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https://skeptics.stackexchange.com/questions/1998/can-humans-smell-if-a-book-has-been-opened#5680
Feynman did it better