TheirTube lets you see how conspiracy theorists fall down the YouTube rabbit hole – it can show the same points of view over and over again, confirming and amplifying your existing bias
TheirTube is a demonstration of this concept, and really shows how recommendation algorithms (what to watch next) tend to show you more of what you want to see, and can be matched to personality types (similar to yours). Of course its not only YouTube as Facebook has regularly been highlighted for the way its home...
