text: People can find the "median" of the advice. This means the middle of the people. In other words, when they get a group of people and ask them for advice, they can get the advice laid out in their heads, and sort out what most people say. That advice will be what most people know, and understand. Most advice given to people is passed on from person to person. Think back to the old man. When he was younger, he could have gotten advice from multiple people. He then took that advice, and gave it to you.