But your vehicle would itself "curve" "downwards" due to gravity, surely a straight line means that you can point a laser, or a hypothetical 0 mass particle beam, uninterrupted from your starting point to your destination.

[–] WilloftheWest@feddit.uk 3 points 3 months ago

Depends on your frame of reference. When traversing the surface of a globe, your described concept of a straight line isn’t intuitive.

[–] linkhidalgogato@lemmy.ml -1 points 3 months ago

in ur every day life if u travel in a car without changing direction would u say that u went in a straight line or in an arc. Clearly u are just trying to be a pedantic cunt for no reason.