> Chunked encoding is used by video players - so you can request X bytes of a video file. That means you don't have to download the whole file, and if the user

> Chunked encoding is used by video players - so you can request X bytes of a video file. That means you don't have to download the whole file, and if the user closes the video you didn't waste bandwidth. There are likely more uses of it. Just a nitpick, but what you describe here is byte range requests. They can be used with or without chunked encoding, which is a separate thing.