It is so easy to take for granted everything that makes our lives simpler and easier. We never think twice about getting an instant answer to almost any question, or finding the right way in a new place, or buying things without leaving our favourite armchair, or even making a computer do what we want by simply saying it. It takes no effort to know when the next bus is coming, or what is on in the cinema right now, or how to avoid getting stuck in traffic. It is technology that makes things like these possible. It is technology that stands behind the things that almost look like magic.