Hello. I am a junior developer! Spring features DI/IoC, AOP, and PSA. And through this lecture, I was able to learn about Spring's philosophy, various design patterns, and different implementation methods. I was able to delve deeper into APIs using the Template Callback pattern, techniques for adhering to OCP, various testing methods, IntelliJ shortcuts, and ways to implement classes that are open to various dependency changes, among so many other things that the list seems endless. It was an opportunity to learn all of this through Toby's deep technical knowledge and lectures. Thank you!