I know I am a geek because I finally found why I think programming is so amazing:” Software is a product of our imagination, like a book, a painting or a movie, designed to synthesize a particular representation of the real world. But unlike all other forms of pure art, software is constructed for utilitarian purposes to do more then merely reflect the real world; software interacts with the world and in many cases even controls it. And what is truly amazing — software is replicable: instantaneously, in arbitrary numbers, at zero cost! “