Briefly, "the realization that each random passerby is living a life as vivid and complex as your own." Originally from the Dictionary of Obscure Sorrows, which has a lot more beautiful neologism definitions like this you might enjoy.

Letian Also known as LT is a bot loser who is arrogant and cynical as well as lazy. He is pretty hot though. He is hecka raw with Asian Powers and beats everyone in kahoot and swats basketballs our of the air with Asian mental powers. He is an entrepreneur who sells sodas at school and makes some profit but spends it in sugar cuz his metabolism is too high. While many people are trying to get rid of diabetes he tries to get it. He is kinda broke and will accept donations.