Swipe right if you like what you see, swipe left if it’s a pass. It’s a simple basis for interaction, and yet has proven compelling enough to propel Tinder into the very heart of the app world. Simplicity is one of the most common virtues of good UX design, but the swipe has taken the concept to its extreme. As the creators of Tinder told Fast Company in a recent interview, we often approach new ideas with a binary mindset. While our thoughts develop more complexity from that point, the swipe has proven effective because it confronts us with a simple decision: Yes or No?