Communication means transmitting and receiving information, it means being able to share not only information but also emotions and moods; the process of communication has been indispensable for the development of life and to enable cultural evolutionary processes. We think, thousands of years ago, of the need to warn our fellow humans of the presence of a predator so that our ancestors could seek shelter or escape. We think, even nowadays, of the constant, indispensable need to communicate our ideas to each other.