It starts to get really spooky when you think of individuals as pegs. Like the pegs in the game of Life, the pink and blue ones. Each one walking around with their own peg brain. And you have no clue what their peg brain is thinking or which direction their peg brain is going to walk or if their peg brain even sees your peg brain or if your peg brain really sees their peg brain. And then suddenly, that peg brain, not the peg brain over there but the one over there runs into your peg brain and then that peg brain says, "sorry".