One of the things that baffles me about people is how they completely misunderstand risk. Lots of my friends panic about things that have no real chance of killing them, but ignore the things that will. This can lead us to make irrational decisions, and sometimes irrational policy. What really will kill us? Watch and learn. Make sure you subscribe above so you don't miss any upcoming episodes! References can be found here: http://theincidentaleconomist.com/wordpress/?p=53600 John Green -- Executive Producer Stan Muller -- Director, Producer Aaron Carroll -- Writer Mark Olsen - Graphics http://www.twitter.com/aaronecarroll http://www.twitter.com/crashcoursestan http://www.twitter.com/realjohngreen http://www.twitter.com/olsenvideo