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by cozzyd 743 days ago
Since the only geodesics that are closed on an ellipsoid are the meridian and equator, doesn't they mean that all points are (eventually) connected by a geodesics? Obviously this isn't what anybody means by a straight line though.

I'm surprised I can't find a "short" (no longer than the largest distance between points) geodesic fitter anywhere. Sounds like a fun hour-long project using GeographicLib.