While Twitter has been alive with breaking news about the events in Ferguson, Mo. after the shooting of an unarmed black man — video clips posted by participants, live-tweeting the arrest of journalists, and so on — many users say Facebook has been largely silent on the topic, with more info about ice-bucket challenges by various celebrities. Is this a sign of a fundamental difference between the two platforms? In a sense, yes. But it’s also a testament to the power of the algorithms that Facebook uses to filter what we see in our newsfeeds, and that has some potentially serious social implications.

Part of the reason why Twitter is more news-focused than Facebook has to do with the underlying mechanics of both sites, and the way user behavior has evolved as a result. Because of its brevity, and the ease with which updates can be shared, Twitter is a…