What you learn about the world at school will become outdated within 10 or 20 years of graduating. So we must find ways to update adults’ knowledge too. In the car industry, cars are recalled when a mistake is discovered. You get a letter from the manufacturer saying, “We would like to recall your vehicle and replace the brakes.” When the facts about the world that you were taught in schools and universities become out of date, you should get a letter too: “Sorry, what
