It's depressing, don't you think? The complete failure of human reasoning.
Two guys are looking at an image:
One of the is a Straight Line theorist (SLt); the other one is a Curved Line theorist (CLt).
CLt: It's obvious that the two lines are curved. It's as clear as daylight.
SLt: No, they're not. The two lines are straight and parallel; it only appears to you that that they are not.
CLt: Look, my eyes are fine and the line curvature is obvious. Are you telling me not to trust my own two eyes?
SLt: I'm telling you that the world around us is not exactly the way our senses and our intuition tells us it is. I'll prove it.
The Straight Line theorist produces a ruler and shows the other guy that the two lines are indeed straight and parallel.
CLt: That proves nothing!
SLt: But I've just showed you with a ruler!
CLt: Rulers are obviously manufactured by companies that want to perpetrate the notion that these lines are straight when it's obvious that it's not. And the government is in on it.
SLt: So you're saying there's a conspiracy to hide the truth.
CLt: Yes.
SLt: Does that mean I'm involved?
CLt: No. You simply don't know any better because you've been indoctrinated to think the lines are straight when your own two eyes tell you differently.
SLt: But science easily explains it!
CLt: Your science is wrong. I'd rather trust my own eyes than your "science".
This is just a joke and should be taken as such.