I am a backend developer who is new to commerce (no commerce experience yet, having only worked in other domains), but I am very eager to enter the field. I've only listened to a little bit so far, but I can already feel the usefulness and freshness pouring in. Feeling this from various angles makes me feel like my thinking is becoming more flexible. As someone new to both commerce and this lecture, it feels like I'm doing reverse engineering. I will make sure to finish the course 100%. Thank you for creating such a substantial lecture.