I cant really comprehend how people can believe in this crap.
Ever been on a plane? you can clearly see the earth is a curvature.
Yes I have.
I doubt that you have been on a plane that flies at a high enough altitude to see the curvature. The number works out to about 60,000 feet; significantly higher than the altitude commercial airliners fly.
As far as the earth being flat it wouldn't appear as a sphere with continents clearly not visible on just one side.
??!?
I don't understand where you were going with that one.
As far as that crap about light bending backwards, if light bent backwards you would be able to see your back.
They don't say that it bends backwards. They say that light is bent perpendicular to the surface of the Earth giving the illusion of a horizon.
Of course, accepting that theory requires you to accept that light is bent.