Dr. Strangelove

Human communication relies about a vast set of shared assumptions about the world that are just assumed by speaker and receiver. When the speaker says, "I am low on gas", the receiver responds with, "There is a gas station at the next exit" because he assumes that the driver mentioned the gas level because he will soon need to gas up the car, so he is asking for the location of the next gas station. In that simple exchange lies a lot of shared assumptions.