Demographers, sociologists and social researchers study the different and especially the last generations for political, economic and all kinds of purposes. The millennial or millennial generation or generation Y goes from 1980 to 1995. It is followed by the post-millennial or centuric generation or generation Z that includes those born between 1995 and 2010 and as they did not calibrate the alphabet well we are now in the Alpha generation, from 2010 to (I suppose) 2025. Post-millennials (it is better to use our name) are always connected to social networks, are perhaps more self-taught and are more concerned about the global environment and social justice, although some are still almost children.