When people argue on the internet, you never expect anyone to actually say "You know what, that's a good point, you've changed my view somewhat." But Change My View, a fast-growing subreddit founded by Kal Turnbull, is an exception to the rule. Julia and Kal discuss the culture of Change My View, what makes it such an oasis for reasonable discussion on the Internet, and what we've learned about what motivates people to change their minds or not.