A doctor, an architect and a programmer talk about their professions. "Mine is the oldest", says the doctor, "as everybody knows God created Eve from the rib of Adam, and that's definitely a medical operation". "Right", says the architect, "but in fact architect is even older - it's definitely an architectural project to create the world from chaos". At this point programmer kicks back in the chair and gives friends a mysterious look. "Who, do you think, created the chaos?"