Everyday a lot of developers work very hard writing code in their proyects. They solve bugs, fight specifications, do state-of-the-art designs, learn the last in development, write hundreds of lines per hour, keep high productivity at lower cost, make clients happy with rich interfaces, make manager happy reaching objetives on time, make their family happy having time with them, ...
But, What is the origin of the almost infinite energy that fuels the entire process? I'll tell you the answer... but first come here and get a cup of coffee.