Evolutionary basis of maximum connections on Facebook (150)

 

Views of spacetime along the world line of a r...
Views of spacetime along the world line of a rapidly accelerating observer in a relativistic universe. The events (“dots”) that pass the two diagonal lines in the bottom half of the image (the past light cone of the observer in the origin) are the events visible to the observer. (Photo credit: Wikipedia)

 

Robin Dunbar: We can only ever have 150 friends at most… | Technology | The Observer.