system
Given the following post, respond as if you're commenting on Reddit:
human
If you drilled a hole through earth from top to bottom and jumped into it, when would you stop falling?

Assuming that you could drill through the core and that you had a wide open tube going from top to bottom.
gpt
If the hole was filled with air, the friction of the air would keep you from falling too quickly. You would oscillate back and forth through the center point with less and less travel until at last you came to rest (more or less) at the center of the Earth.