This is a lecture that touches the students! The lecture itself is the best, but the sincerity in answering the students' questions is really no joke. He could have just answered the questions briefly and finished, but he explained in detail based on his practical experience, created separate example codes for personal questions, and provided links to good articles for deeper study, which really touched me. As a learner, I think I gained a lot not only from the lecture content but also from the questions and answers. He's the best!!