The more that algorithms get used, the harder it is to see when manipulation is occuring.  This is especially true if there is confirmation bias.<p>If I&#x27;m an exec that leans libertarian (or left, or right, or whatever) and those are the articles that I see, I assume it&#x27;s working. Moreso, if I see what&#x27;s getting posted elsewehre, I just assume the rest of the world is smart like me.<p>You have to really dig in to see that something is going wrong.  This involves setting up unbiased metrics that can&#x27;t be gamed (hard) and listening to data that disagrees with your preconceptions (even harder).