Dogs
Although small this conceptual painting has quite a bite and is based on the philosophical problem of knowledge: i.e. how can we know the difference between appearance and reality when our senses are often inaccurate? For example; how do you really know you are standing / sitting here reading this and not a brain in a vat connected to a computer? (Putnam) How do you know an evil demon is not tricking you? (Descartes) How do you know you are not just watching shadows in a cave? (Plato) Can you be absolutely sure you are not dreaming?