…the fundamental everyday interaction and make them fresh and unexpected with the help of animation. Animated effects are especially useful for mobile apps — they make users forget that they are just tapping a piece of glass and instead makes them feel like they’re interacting with real elements on the screen.
With only ~4 capacity storage, it’s a zero sum game. If working memory is focused on the tool, it’s not focused on its goal. If it’s focused on the goal, it has little room for a complex tool. If it wants to focus on both, then we’ll feel a lot more mental fatigue and be more error prone.