I too disagree with the multiple-lodestone theory.

However, I don't see any evidence that the magnetic field lines can't come out of the north pole, go 'round the edge, and back into the north pole from underneath. So the geographical south pole (the rim) would be quite distinct from the magnetic south pole.

Also, I don't know of any reasons why one cannot have a non-isolated point as a magnetic pole. Why can't the whole rim be the magnetic south pole?

I guess it's just that I haven't actually gone ahead and tried to find a solution to Maxwell's equations consistent with the current flat-Earth cosmology. Have you proven this to be impossible, Cinlef? Of course, we'd need a mathematical proof here. I'd be willing to read it over if you've got it.

-Erasmus