I.e. it goes outside the space within which the great circle is a geodesic, which is the 2d space which is the surface of the Earth.
Originally Posted by Jeff Root
Thanks for making my point.
The way we're looking at is that a great circle is a straight line, the surface of the earth is a curved space, and the only way to take a shortcut is to leave the space it exists in.
And you're assuming an outside Euclidean space is a normal spot to look from, despite the Universe not being one.
Reductionist and proud of it.
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