Description: [caption id="" align="aligncenter" width="448" caption="Temperance Parade, Church of the Nazarene, Medora, Illinois, photographer unknown, real-photo postcard, 1908, Courtesy of Luc Sante, 2009."][/caption] One of the thrills of seeing—when you stop to pay attention to it—is how complex and quickly the process of looking and making sense of what we see happens. According to