system
Given the following post, respond as if you're commenting on Reddit:
human
Are we just “lucky” that Magnetic North is very close to True North, or is there something more behind the reason?
gpt
In principle there is no real requirement for the magnetic field to be aligned at all with the rotation axis. It would however be expected due to the rotation of the planet producing Taylor columns inside the outer core resulting in a helicity component of the fluid flow roughly aligned with the rotation axis.