This is a very basic video that will be helpful to someone who is completely new to R. However, there are too many unnecessary comments. The lecture is short, but there are so many unnecessary comments that it feels like I'm listening to a very short explanation of the core and a very long explanation of the background. Also, I think the people who come to listen to this lecture are people who come to learn with an emphasis on the R language. However, there are so many background and detailed explanations that the content that is actually helpful for learning seems to be just a superficial overview. I hope for more content that focuses on the core and really helps me get to know R..! I enjoyed the lecture.