system
Given the following post, respond as if you're commenting on Reddit:
human
If the purpose of smell is to warn our bodies of potentially harmful chemicals and such, why do some things that smell good (soap, perfume, cologne, etc.) taste horrible?
gpt
All the example products you listed are *specifically engineered* to smell good.  As in some chemists in New Jersey (ya, rly) figured out what makes things smell the way they do, extracted those compounds, and added them to soap, perfume, and cologne.

Also, the purpose of smell is just to pick stuff out of the air.  Deciding whether you like or dislike something happens in your brain, which is how you and your friends can have vast disagreements on whether something smells good, bad, or somewhere in between.