[popalchemist]

The olfactory nerve is direct neighbors to the memory center of the brain. That's why the memory trigger happens when you smell a specific smell.

[memoriesofsmell]

If someone blindfolds me and puts a smell under my nose, even if it's something I smell regularly, I will struggle to pick it personally. So discovering that other people can recall things so strongly as a result feels like a hidden super power to me!