That is so fucking retarded.
If you are flying around a sphere that means the plane has no choice but to have the nose pointed downward, from the pilot's perspective. Due to the circumference being 25,901 miles, you MUST be descending at a rate of 2.25 miles per minute!
On this chart below, no matter if you want to call starting position top, bottom, upward, downward, NONE OF THAT SHIT MATTERS.
If you are traveling from the "0" point to the "2000" mile point, THE PLANE'S NOSE HAS TO BE POINTED DOWNWARD TO GET THERE!
How the FUCK can you look at the space between 0 and 2000 and not see it as analogous to going down a fucking hill???