In this case, he's solving a real problem for a real person. This means you need to know people with problems, and recognize that they are problems (they may no

In this case, he's solving a real problem for a real person. This means you need to know people with problems, and recognize that they are problems (they may not think so!) and believe you can improve it. Of course, you can make something way better than what they have, and they still not use it...