Much hand-wringing and self-examination has taken place since the US Presidential election about why so many people, political pundits and journalists included, were blindsided by the result. The ‘echo chamber’ as a metaphor for social media has been the most frequently cited cause. Nowadays most of us, the argument goes, get our news from Twitter or Facebook feeds. This is true, not only for the millennials, but equally or almost so for older generations. Because most of us are reading ‘news’ (more often opinion, when it comes down to it) from our friends, who are likely to share our views, there’s a danger that our prejudices are never challenged and that we live increasingly in a world that bears little resemblance to reality.