There was a student who wrote a song about people, as a species, having one mind. That our apparent separation, might not be that at all. Classmates asked how can you prove it since people are independent free-thinker-creatures. She answered imagine for a moment that we were of one mind and like the leaves of a tree believing themselves separate are unable to comprehend their apparent separation blinds them from seeing something way more spooky, like maybe the tree. They included her less and less because clearly she was very difficult to get along with.