When it comes to design — whether it’s for apps, websites, phones, TVs or computers — we throw around the term “user friendly” a lot. User-friendly design makes using a product easy and painless, which means we don’t notice it, we just enjoy using it. Sometimes, when a design is really good and easy to use, we don’t notice that we’re kind of addicted to an app, game or phone — or that we’re becoming increasingly dependent on those things. Cliff Kuang, a longtime user-experience designer and journalist, explains how the best design comes from empathy.