There are so many things to learn, and there are so many ways to learn. For example, by doing, listenig, reading, and talking. Obviously, the optimal way to lean would be different based on what you want to learn. Some people might think that the reading the textbooks and listening to the teachers' lecture is the most effcient way to learn. However, I would personally prefer to learn things by doing with the pont of "The combination of input and output" view for the following reasons.