... of many perceptual illusions. For example, whenpeople see an object lying at the bottom of a tank ofwater, it is very common for them to believe that the object is closer to the surface than ... Daniel C. Dennett, ‘Intentional Systems in Cognitive Ethology:The ‘‘Panglossian Paradigm’’ Defended’, Behavioral and Brain Sciences 6 (19 83) ,pp. 34 3–90, reprinted in his The Intentional Stance, ... questionthan they do with how those objects are in themselves.APPEARANCE AND REALITYIt is a commonplace that things are not always really as theyseem to be: appearances can deceive. There is a danger,...