Airplanes don't exist

[FlatAssembler]

Anyway, I've also posted this parody on The Flat Earth Society forum, years ago. Recently, a user called RabInOz revived that thread with something very smart:

I know that jet airplanes are real, all I have to do is look out my window on a daily basis.

You must be a part of the worldwide conspiracy that falsely teaches that the airplanes really exist .

So the onus is on YOU to prove that when you look out your window on a daily basis and see real passenger jet airplanes:
Maybe all you're seeing is this sort of thing:
https://youtu.be/TOewW2_esBM?t=171

You could post your own video but, of course, if I cannot personally verify that, it's probably just a CGV and more fabricated evidence.

Just remember that us airplane deniers start with the knowledge that airplanes don't exist. All the evidence which we are personally able to collect and verify confirms this fact. As a consequence, all the evidence to the contrary, much of which we are unable to personally test/verify is viewed as being false. The existence of such a huge quantity of false information indicates the existence of the conspiracy.

Essentially the reasoning boils down to -

P1) If personally unverifiable evidence contradicts an obvious truth then the evidence is fabricated
P2) The non-existence of airplanes is an obvious truth
P3) There is personally unverifiable evidence that contradicts the non-existence of airplanes
C1) The unverifiable evidence that contradicts the non-existence of airplanes is therefore fabricated evidence
P4) If there are large amounts of fabricated evidence then there must be a conspiracy to fabricate it
P5) There is a large amount of fabricated evidence (see C1)
C2) There must be a conspiracy to fabricate it.

So, therefore Mr MouseWalker, you are proven a part of the worldwide conspiracy that falsely teaches that the airplanes really exist .

Why should Globe deniers have a monopoly on this conspiracy businesses?

"Globe denier" means a Flat-Earther, by the way!