Let me tell a personal story -- I was watching an episode of MythBusters and it was to do with, 'Can a plane take off on a conveyor belt?' So I thought about it and said to the person I was with, "Everything I know about aviation says to me the plane should not take off... Unless there is something that I have not factored in."
The MythBusters asked their pilot how he assumed the test would go. The pilot agreed with my position. "This plane is not 'taking off'." The plane took off just fine...
My 'assumption' was made without all the data because no one had tried this before, however, both the professional pilot and I immediately "figured out" what we had not 'factored in' and I know I laughed at myself... I hope a "real pilot" did as well...
We made assumptions on what We THOUGHT we 'knew'. When more info came in We realized our mistake/miscalculation. Dysfunctional thinkers on the other hand would hold onto their 'assumption' that the plane "wasn't going anywhere" even as the plane is flying off over the horizon. They will still see the plane as "on the ground" rather then admit they made one silly miscalculation and apologize/laugh 'it' off at the time.
The moral of the story is, I know a lot about aviation as did a professional pilot. We both made the same mistake and looked pretty damn silly as the plane took flight. The person I was with looked at me and asked, "What didn't you 'factor in'?" Me -- "Wheels on planes are 'free wheeling' not like in cars... All the conveyor belt did was make the wheels turn twice as fast. It didn't change the air-flow/lift across the wings."
So not only did I make an incorrect 'assumption' but I could recognize and admit where I went 'wrong'. Does that take away from all my other aviation knowledge? Nope. Would I get on a plane with a pro-pilot who made the same miscalculation? Of course, but only because he saw the same thing. If he was still trying to claim the plane was 'on the ground'? No.