Hello Kim Ju-young, Thank you sincerely for taking the time to leave a review for the lecture. The 3-star rating is feedback that gives me a lot to think about as well. If there was anything disappointing about the lecture or any areas you'd like to see improved, please feel free to let me know. It would be of great help in developing the lecture in a better direction in the future. Thank you for attending so far, and I will strive to make the next lecture more satisfying for you! 😊