Hello, first of all, I'm sorry that I couldn't provide you with a good experience. I'm sorry that I couldn't give you much satisfaction in taking the class. First of all, I don't think it's a big help to study development by telling you everything. The lecture itself was implemented with simple code using Redis in Spring, and I explained how I used this code in this way and how it would be good to use it in this situation, so I hoped you would study by using it yourself later. As you said, there are many places where you can get help from references these days. However, I think there is a big difference between knowing and using these references and just being told to use them. I hope you will be able to get more help in taking the class by considering this as well. Once again, I'm sorry that I couldn't provide you with a satisfactory lecture. I will keep in mind what you said as I prepare for the future. Thank you!!