I believe you are so indoctrinated, you don't actually realise what your eyes are telling you. For example, if you state you can see a curve, I don't believe you can, because my own eyes tell me there is no curve. When pushed, so-called "expert" Heliocentrists admit that the curvature can't be seen at so many thousands of feet elevation because the Earth is too large.
I don't believe we can find common ground on this subject, because we can't agree on what is actually observed.