Can you please press him on the great circle principle.It is not about the tracking map. You going on about Santa is your attempt at deflection that you can't answer what it is, because the truth is inconvenient for you.
You can't go out and see Santa as I said. You can look in the sky and see the ISS. What bit of this are you failing to understand.
The globe is closer to reality because in 2D, certain distances have had to be stretched to be able to lay it down. If you take the distances people travel and have measured between major cities and join them together in a model, that model will not lie flat.
I've just recently learned about it and I wanted to show off, but he won't answer me as he thinks I'm setting a trap for him or something.
Southern hemisphere flight times always have them squirming as well.
Oh, and the coriolis effect while you're on.