

You’re not thinking about how an LLM works: That would be a super easy question for it because there are tons of resources about imaginary numbers and i specifically online.
But ask it to add two random 4-digit numbers (an easy task for a computer or an elementary school student) and it might get the answer wrong just because those precise numbers haven’t been added enough on the web, and they treat numbers the same way they do words.
Yeah, that tracks.
I guess it really doesn’t ‘want’ to say “not enough information” - which I think is the true answer:
If your starting point was the North Pole then you are back exactly where you started, if it was along the equator then you are within rounding error of 4m west of where you started. Start 4m from the South Pole and “4m west” ends up undefined. At the SP, “4m south” is undefined, etc.