I didn't know much about interactivity, but I really liked the way it got the mouse value, the scroll value, etc. However, when I listened to the lecture with earphones on, I felt like there was a loud noise and the microphone quality wasn't very good. Also, the code size seems to be the size when I write the code alone. It's not visible in the lecture. And the code I listened to last time and the code when I moved on to the next lecture kept changing, so I often had to stop for a moment and modify the code again. I think that might be because I'm a beginner.