Youtube already shows you related videos, and on the home page suggests videos based on your viewing history. It would not be difficult to modify those algorithms to attempt to suggest videos with the intent of influences the viewers belief (as opposed to maximizing their time on the site). Similarly, Google can do this with their main search engine as well. Of course, when thought about in the abstract, this seems highly distopian, but the time maximizing goal also has political effects (namely, the &quot;search bubble&quot; and radicalization).