No Surprise From studying neuroscience in college, I knew that the olfactory system goes straight into the deep brain as one of the oldest evolutionary neural

No Surprise From studying neuroscience in college, I knew that the olfactory system goes straight into the deep brain as one of the oldest evolutionary neural structures and pathways. It's likely related to how a smell can instantly evoke very deep and old memories more strongly than sight, touch, or hearing. I caught by breath when I first heard that one of the initial signs of COVID-19 is loss of smell. I don't know what's going on in there, but it can not be good - kind of like a code insertion into the deepest kernel layers - it can make an outsized disaster.