If you repeat something enough times, it comes to feel good and true. Support Veritasium on Patreon: http://bit.ly/VePatreon Science with Hot Wheels! My vids for kids: http://bit.ly/VeHotWheels More info on cognitive ease: http://bit.ly/29OMGas This episode was inspired by the book Thinking Fast and Slow by Daniel Kahneman. This video was edited by Daniel Joseph Files, with music from Kevin MacLeod at http://incompetech.com/ "Marty Gots a Plan" "Sing Along With Jim" and "Full On". Veritasium is supported on Patreon by: Jason Buster, Saeed Alghamdi, Tony Fadell, Donal Botkin, Bryan Baker, & Imthetroublesolver 8)