There is no doubt: the internet has changed the way we interact with each other. Additionally, it has been argued that online social networks, such as Facebook, could potentially lead to an explosion in the number of friends we have, and connect all of us in a sort of “global village”. But, is this the case? As Prof. Dunbar brilliantly states in this TEDx Talk, the short answer is “No”. If you are intrigued about this, the (not so) long answer can be found in this video. Enjoy!