I'm already opening my second course!! Personally, I have a strong desire to share knowledge, so I wanted to freely share everything I know with you. The topic I want to cover this time is Apache Flink, which I've selected as a subject that you should definitely know about. Let me be honest!! If you don't have knowledge about real-time communication, this content might be difficult for you to understand. (Of course, I'll teach you everything, and honestly, I think the course is structured really well. haha) But you absolutely must learn this. Even though it's difficult, I want to guarantee and tell you that you must learn it. Real-time communication seems to be becoming extremely important in today's era. I think we need to provide more content to generate more traffic and collect more data. In fact, this aspect is reflected in numerous large corporations and unicorn startups. Netflix's recommendation system that you know, Uber's real-time fare calculation, and recommendation systems like Musinsa I haven't seen any platform or service that you use that doesn't include this real-time communication. So please, I really hope many people learn through this video. You really must learn this. Please, I'm begging you for the sake of your career hahaha