You know that feeling when something gets said so many times that people just start treating it as fact, no matter how shaky it was in the first place? Like, Santa didn’t make the cut, but God sure did. And remember right after 9/11, before they got the memo, how TV channels kept saying first responders had heard a bomb in the base of the building and later they all started saying it collapsed due to structural damage from the plane impact, and it just got accepted with no one bothering to question it? What are other examples of things that basically became true through repetition alone?