In this episode, Mat and Dusten discuss how they are just as much different as they are the same. They fight about Harry Potter, Comics, and Joel Osteen. They don't resort to stabbing each other despite disagreeing with each other and with other people in their in and out group. So that's what episode 19 is all about! You're either with Positive Dissent, or you're against Positive Dissent...or if you see through that fatal plot hole, you might just understand something about the in-group vs. out-group bias.