That sounds more like a possible cause than what my memory thinks. Much more reasonable to me.
A long time ago at optical store I went to for a new pair of binoculars I met a man in his 70s and he was nice to me. We talked a lot and became good friends. He taught me about critical thinking. I had never heard of it before. He gave me copies of The Skeptical Inquirer. I started learning to look at things more objectively I think. There was a line, “Don’t believe everything you think.”
I started learning about connections and patterns we think we see.
Sometimes we are absolutely right but other times we tricked ourlselves because our brains (as I was taught, I do not know this is true) are designed for pattern recognition so they can react more quickly but also with less energy. So sometimes it makes mistakes.
They give the example of the tiger in the grass. Sometimes it is just some branches or shadows but we were sure we saw a tiger so we jumped or ran. The people whose brains thought like that more, survived much better when we lived in grasses and there were predators. They ran as soon as they felt a threat.
People who took time to reconsider what may have been in the grass were killed by tigers as everyone else ran.
But it goes the other way too. The group may quickly believe something cures sickness because they made a mistake in connecting two things. That thing it turns out made everyone sicker. For example a spring of water that was supposed to cure you but contained a pathogen. The more skeptical thinkers held back from drinking the water and by the time so many were sick people realized to avoid it those skeptical thinkers had never tried the water and survived.
The examples go on and on and the point over and over is that it is not always better to always be believing or skeptical. If you are in a building and someone screams “Fire!” but you insist on never being fooled or believing in anything you do not confirm yourself, you could die while everyone else got out.
Critical thinking is about using facts to determine what is most likely true. We can not be sure but we can do pretty well if we do not identify with the truth, we only want to know what it is.