Are we the dumbest species?

Villas - Are we the dumbest species? I was in a lobby of a medical building yesterday waiting for the elevator. The mail carrier, who was holding a stack of mail, pulled down his mask all the way to look through the mail better. Perhaps not wearing a mask makes one actually see better. Kind of like turning down the music in the car while you’re driving if you smell something unusual. Like that helps you smell better. I give up!