Several polls in the past couple of years (including from Ipsos, YouGov and most recently Savanta on behalf of Kings College Policy Institute and the BBC) have been examining the kinds of conspiratorial beliefs people have. The findings have led to a lot of concern and discussion. There are several revealing aspects of these polls. Magda Osman, Principal Research Associate in Basic and Applied Decision Making, Cambridge Judge Business School, is interested in what claims are considered conspiratorial and how these are phrased. But she is also interested in the widespread belief that conspiracy theories are apparently on the rise, thanks to the internet and social media. Is this true and how concerned should we really be about conspiracy theories?