Sure. But it's often that people "know" something that is false. The expression "like pulling a band-aid" is a great example. It's what doctors and nurses believe to the degree that they willingly torture their patients because they believe honestly they are reducing total suffering. But they are wrong.
Source: the work of Dan Ariely. His Ted talk is a good introduction.
Sure. But you won’t see anyone commenting about that. I’m only saying some people will in fact intuit a thing and be right, and we should hardly admonish them for doing so.
The higher rated their comment is, the more other people likely intuited the same.
It’s almost a decent measure of how obvious the thing being proven actually was — assuming you could baseline it and compare it to others in a meaningful way.
Source: the work of Dan Ariely. His Ted talk is a good introduction.