If Faisal Islam, Ralph Keyes and the New York Times are to be believed, the Trump candidacy and the vote for Brexit show we've entered a post-truth era – a world where emotion and populism win out over facts and experts. But is it true? And do emotional appeals really trump facts and figures?

In the US, there’s a huge gap between the number of eligible voters and those that actually make themselves heard on election day; around 93 million Americans didn’t cast their ballot in 2012. How has Hillary Clinton’s campaign harnessed digital platforms to engage people and get out the vote?

Online recommendations appear to be valuable information sources when trying to decide where to go out for dinner; but what if they are being biased by something as irrelevant as the weather? Researchers have uncovered that restaurants receive better reviews on sunnier days.

In 2012, 62% of young people didn’t vote in the US election. This time around, Rock the Vote is trying to change that by teaming up with Doritos to create a pack of flavourless crisps. People can send a pack to an unregistered friend, pointing out the importance of making a choice.