“Even if we are not deliberately blocking people who disagree with us, Facebook curates our feeds so that we get more of the stuff we ‘like.’ What do we ‘like’? People and posts that agree with us.”23 This is especially dangerous now that social media like Facebook and Twitter have become the primary sources of news and information for many Americans, and experts trying to break through this shell of political insularity and self-assured ignorance do so at their peril.




