Why we can't seem to agree on what's true when it's easier than ever to check. Videos like this are usually on 2Veritasium: http://bit.ly/2Veritasium Support Veritasium on Patreon: http://bit.ly/VePatreon This video was filmed at a meetup in Stockholm, Sweden on Dec. 9, 2016. Huge thanks to everyone who attended - I had a great time. Sorry to those of you I missed, especially Lund and Gothenburg. Thanks to Patreon supporters (but this is a non-paid post): Meshal Alshammari, Nathan Hansen, Bryan Baker, Donal Botkin, Tony Fadell, Saeed Alghamdi, Ron Neal