I dont know all 8 billion people in the world, only a few thousand

 So I cant speak for all and generalize as I tend to do

However i observe trends, history, news, books, movies and the people I personally know, people I have known and the new ones meet so I see patterns of behavior sometimes which are seeming to be collective

Psychology, human and animal behavior, response to stimuli, environment, exposure to real or imagined things interest me.