I just read this:
300 hours of video are uploaded to YouTube every minute!
Imagine in ten years. There will be so many videos available, perhaps too many. Have you ever tried searching for an old video you remember from a few years back? The search results are pages and pages long. Unless you know the precise wording for the search you may need to go through dozens of pages find the video you're looking for. There's starting to be too much information on the Internet. Is it sustainable?