I see no argument from incredulity.
An assumption that the Earth must be spherical is made by stating that a globe is flawless. That's circumstantial. If the Earth is spherical, then a globe is accurate. If the Earth is flat, well, the shape of a globe would be quite an inaccuracy. The second "if" has been skipped to use "the globe is perfect" as a fact, rather than an opinion, which it, in fact, is.
This assumption is then made to prove that the Earth is not flat.
Yup. Argument from incredulity.
you mad. In fact the globe is an accurate representation of reality.
if you read the post, then you'd see that.
FE map-->inaccurate prediction of colorado's area
RE globe-->accurate prediction of colorado's area
QED RE globe is a more accurate representation.
mind you this is based on the shape of a quadrilateral in either case, not any specific region.
a certain quadrilateral of set azimuth and zenith angle on earth aligns with the region if calculated in globular coordinates, not polar.