system
Given the following post, respond as if you're commenting on Reddit:
human
How do satellites fall out of orbit?

I've heard of satellites that fall to Earth, and I've wondered how that happens.
gpt
Even at the altitude that many satellites orbit, there is still a tiny amount of air, which causes some drag. This slows down the satellite, causing it to drop into a lower orbit, where the air density is a bit higher, etc...

Without correcting the orbit of the satellite every now and then, satellites in low orbits will simply see their orbit decay due to air resistance.