Imagine you are trying to drive to a place that you have never been. Fortunately, you have modern technology and a trusty GPS to give you turn-by-turn instructions. You input the address and commence your journey with confidence. A pleasant and familiar voice says, “Turn right in one quarter mile.” Then unexpectedly, a different but also pleasant voice says, “That’s not right. Stay straight in one quarter mile.” As you get closer to the turn, the competing voices speak again. “Right turn in 500 feet,” says the familiar voice. The other voice speaks, “Don’t listen to her. She is running outdated software. You need to go straight. Besides, who is she to tell you what to do?”
