Plato said that human beings think they are seeing reality, when all they see are shadows reflected on the wall of a cave. In other words, our knowledge of reality is far from perfect. At first sight, this photo makes you think that the shadow you see is that of a man trying to get the attention of a woman who is not taking any notice of him. That may be what it looks like, but it’s not what’s happening at all. Machiavelli said: “Everyone sees what you appear to be. Few experience what you really are.” Appearance or reality – which do you prefer?