The document uses an analogy to describe how social media works. It imagines all of a business's customers and interested people assembled in a room, with the business owner at a podium to address them. However, when an employee is handed the microphone instead and begins shouting an unfocused message about sales and the company, the crowd starts leaving within 15 seconds until the room is almost empty. The document warns that social media is like this scenario, with businesses only getting a limited chance through each post, tweet or video to engage people before they lose interest and move on. It emphasizes the importance of having the right person crafting clear, relevant messages for a business's social media presence.