The world around us works by cause and effect. Though not always obvious, any event we perceive is always brought about by one or several preceding occurrences. The concept of cause and effect is so inbuilt in our brains that artists use it to create optical illusions otherwise known as magic tricks, where our brains are tricked into perceiving an event without logical cause.
Psychologists have speculated that the reason infants find the game ‘peek a boo’ captivating is because their minds do not understand that when you hide your face behind a curtain, you do not go out of existence. They are therefore delighted when it appears to them that you vanish and reappear. Babies do not comprehend cause and effect.