|The original Paddle Move|
I'm talking about magic. It was another magician's opinion that a large action covers a small one. While this is factually not true he created a trick which was utter garbage based on that.
His opinion was so much stronger than the fact that it did not fool so I had a discussion about it with him and it took me a while to understand that "the larger action covering the small action"-myth was the reason for his conviction.
So based on that myth he formed his opinion and stood by it in spite of contradicting evidence....
There is a metaphor in this somewhere!