> Then, in turn, our brains are not hardwired to associate specific smells to specific objects. I think you are speculating cause. Culturally we tend not to c

> Then, in turn, our brains are not hardwired to associate specific smells to specific objects. I think you are speculating cause. Culturally we tend not to communicate much about smells - it could just as easily be that most of us have the ability but it is never trained because it isn't much use to us. Anecdotally I know people with a wide range of different olfactory abilities. It is interesting to try and think of how we could test for the ability. Perhaps not testing for my pencil, but something else - a child - a dog - shoes - urine.