In a world which is everytime more open and with an excess of open source data, we have the idea of having access to all information. Nonetheless, something that looks like a minor barrier at first sight keeps us from accessing all this information: the language barrier. If you don’t belong to a certain language group or if you haven’t learned the language you don’t have access to this information. In this respect, machine translation is of great importance. Despite 60 years of research we still haven′t reached a fully automatic high quality translation. In this article we describe the development in machine translation and we try to understand why translation is so dificult for computers.