There is probably no person in the world who, at least once in their life, didn’t blurt out something silly, because they didn’t take a second to think before saying it or they just weren’t familiar with the subject. But sometimes, people who are discussing some obvious or well-known things end up telling others things that are outright nonsense, and they sincerely believe in what they are saying. These folks are not schoolchildren, but grown-up educated people. For example, the engineer that asked, “Who is Thomas Edison?” And the future lawyer who didn’t believe that dinosaurs used to live on the Earth.
Have you ever heard similar phrases from people around you, after which you thought, “What a silly thing they just said…”?