Okay kiddo, have you ever watched a video on your tablet or phone and it sometimes stops or gets blurry because of poor internet connection? A group of smart people created a special way to make videos clearer and use less internet. It's called LCEVC, which stands for Low Complexity Enhancement Video Coding.
Basically, imagine you draw a picture of a house but it's kind of blurry. What LCEVC does is add little details to make the house look better without having to completely redraw the whole thing. It's like putting on glasses that help you see clearer. This way, videos look better without taking up as much space on the internet.
So the next time you watch a video and it looks super good even though your internet is bad, it might be using LCEVC technology!