On this episode of Who Smarted? a friendly leprechaun enlists the help of his new digital assistant O’Siri to find the pot of gold at the end of the rainbow. Spoiler alert: There is no pot of gold, because there is no end of the rainbow!  Turns out rainbows aren’t actually arches – but what they are, and why you see them, is super interesting.  Want the free study guide for every episode?  Sign up at www.WhoSmarted.com and please add to our growing 5-star reviews on Apple podcasts!