Invisibilia's episode was my first exposure to it. https://www.npr.org/programs/invisibilia/378577902/how-to-become-batman https://www.npr.org/programs/invisib

Invisibilia's episode was my first exposure to it. https://www.npr.org/programs/invisibilia/378577902/how-to-become-batman https://www.npr.org/programs/invisibilia/378577902/how-to-be... The man posits that clicking is instinctual for blind people but they are told to quiet down in class and most never develop their echolocation abilities