This is how a 5 year old would understand this since you can't? Imagine you and all your toys are sitting inside a giant flying room. The room is racing through the sky very, very fast—faster than any car you have ever seen. But because the room, the air inside it, your seat, and you are all racing together at the same speed, nothing inside the room is sliding past you. Your toys stay still. That is why it feels quiet and slow. Your body is like a little feeling-machine. It notices when things speed up, slow down, or turn. Those changes are called acceleration. Once the flying room is cruising steadily, there is almost no change left to feel. So your body says, “Nothing is happening,” even though the whole room is still zooming. When you look out the window, the ground and the clouds are very far away. Far-away things always look like they are moving more slowly, the same way a mountain far down the road barely seems to crawl even when the car is going fast. The flying room is high up, so the world below looks like it is drifting. It is the same gentle trick the Earth uses every day. Our whole planet is spinning and racing around the Sun, yet we do not feel it because we, the air, the trees, and the oceans are all moving together. The universe likes to keep things balanced that way—so we can sit still, look out the window, and still be part of a great, quiet journey.🤣👌😉