I finished the Spring Core Principles Fundamentals course in just 4 days. After Young-Han's unique, hands-on approach, Spring really hit home in this lecture. I almost fainted in the beginning while learning JSP and Servlet, but my head suddenly felt refreshed when I used Spring. I thought Spring really had a knack for taking out weaknesses, but the biggest learning was finding out that it was all thanks to the handler adapter and HTTP message converter. Wow, isn't it Young-Han who has a knack for taking out weaknesses~~?? ^~^ It was so much fun. Thank you!