Disney apparently took issue with this last rule of nature, because it went ahead and figured out a way to create the sensation of texture on flat surfaces. In other words, it can make something flat feel not-flat. The idea is for you to be able to feel the shape and texture of items pictured on a touchscreen (e.g. if you see an apple, you'd be able to also feel that apple). It does this by regulating the electricity flow on the tablet itself. This actually makes sense. Think about static electricity. Sometimes, just before a jolt, you can feel something for a moment.