system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do we have both a North and a True North?

My iPhone shows if I want to see the North or the True North. What is the difference between both and why do both exist?
gpt
True North is what we see at the top in a standard map. It is the top of the world. These will follow the meridians.

The "other" North is Magnetic North, and has slowly been shifting away from True North an is now in the Arctic Ocean.