The Facebook echo chamber is a true effect, and echo chambers cause a feedback loop of encouraging radicalization. If you wanted to, you could always run sentiment analysis over comments containing a political candidate, say Donald Trump, and penalizing in feed ranking comments that were pro-Donald or anti-Hillary, thus dampening the echo chamber. Same thing with simply penalizing links from right wing websites. The echos then start to fade, and then perhaps lower the motivation of someone to vote or donate money or something.<p>In the end though, you&#x27;re basically just playing at the margins.