How Many Smells Can You Smell?

The video explores the sense of smell, tracing its origins to single-celled organisms. It highlights the complexity of olfactory receptors, which are coded by nearly a thousand genes, and explains how these receptors detect a vast array of odors. The video discusses the emotional and memory connections of smell, noting that smell-associated memories are often more emotional than those triggered by sight or sound. It also examines the perception of smell, suggesting that humans can detect up to a trillion different odors. The video concludes by reflecting on the unique and powerful nature of smell.

What new insight or understanding did you gain from this video?