Maybe I could have put that better. I&#x27;m trying to say that describing the composition of a smell is rarely important. In the typical case what matters is either that it&#x27;s the smell of some specific thing (I smell fish and chips - that makes me hungry, I smell fire, I smell gas) or that it&#x27;s pleasant (you smell nice) or undesirable (you stink). Composition, though, mostly just matters when describing perfume or something.<p>But yeah this might be a little tautological.