Imagine you’re sitting inside a tiny room at the center of a hydrogen atom, watching the electron move around you. After a while, you notice that although the electron zips around unpredictably, it spends most of its time closer to you, near the center of the atom. So, if you were to average out its position over time, you’d find it’s usually somewhere near you, like a buzzing bee that likes to hang out in the middle of its hive most of the time.