Why does it seem the larger any particular group get, the more stupid it becomes. Are human beings just naturally inclined to be dumb?
 larger a group gets, the more stupid they tend to be.  This is because decisions are made more poorly when people are in a group as opposed to when they are alone. [1][2]  People will also often conform to group norms which can undermine their individual intelligence. [3][4]  Tech addiction could also be a contributor to this problem as it can alter human behavior in group settings. [1]
Human beings are prone to becoming stupid when they are part of a crowd because they are unable to act independently. [1][3]  This is due to the fact that we are individuals, but we actually very rarely act independently. [3]  We plan our route to work to avoid traffic, try to be a team player at work, tend to watch movies that are popular, etc. [3]  In cohesive groups, on the other hand, where members share an identity, the urge for unity overrides all. [2]  So when Richardson says that the decisions people make as a group tend to be more prejudice and less intelligent than the ones they make individually, he is able to detect this because they do not share information, they share biases. [1]