ABSTRACT
Should we care about what lies behind the surface of the cultural objects we value? If a feature is invisible to our senses, does its existence really deserves our attention and concern? Engineers like doctors obviously needs to know about anatomy, materials... bones and skin diseases. Their job is to preserve what society cherish and their mean of action requires this knowledge. But should said society be concerned only by failures of plastic surgery and facade cleaning, overlook the viscera and leaving their cure to the experts? And should these last understand their duty as not only caring for what people see but also caring for what they, themselves, have the privilege to see?
These are the questions that the paper tries to develop and discuss.
