You are sitting on your porch, watching a plane fly into the distance. The plane is at an altitude of 5,000 feet at all times. Your porch has a 3.5 foot high fence/deck railing along its perimeter. Your house is located just a little above sea level, looking into a flat horizon. As you sit you can see a bright sky above and you can see the horizon below the top level of your deck railing and between the slits.
It is possible for the receding plane to start off overhead, and as time progresses, eventually appear below the top of the 3.5 foot high deck railing as it approaches the horizon. HOW IS THIS POSSIBLE?
This example above should show how silly the question is; and how the result is clearly due to perspective. You may as well be curious how you can raise your hands above the level of any clouds you see in the distance and be lost in wonder how your 5 foot tall hands can seem to get above clouds which are thousands of feet high in the distance, because this scenario would be as equally confounding, based on your understanding of the world.