A Native American was being escorted around the center of Manhattan in New York by a friend who was a resident of the city. The Native American stopped his friend and whispered, "Wait. I hear a cricket." His doubting friend said, "Come on. A cricket? With all the noise of the taxis, horns honking, brakes screeching and people screaming, you couldn't possibly hear a cricket." Undaunted, the Native American led his friend to a nearby planter and dug through the mulch, and sure enough, there was the cricket.
His friend said, "How could you possibly hear a cricket in downtown New York?" The Native American replied, "My ears are different than yours. It simply depends on what you are trained to listen to. Here, let me show you." With that he pulled a handful of change out of his pocket and dropped the coins on the sidewalk. When the coins clanked on the cement, everyone within a block turned around.
What have our ears been trained to hear? What have our eyes been trained to see?