You're right but I think what they meant is essentially a facet of Dunning-Kreuger.
Most people know enough to know that what they know is a fraction of the surface area of a subject.
But some people know a fraction of it and think they have godly expertise because they can't see the breadth and depth of the field. This is often because they can't even comprehend the complexity as they simply haven't encountered it before.
I mean, in some areas the same facts can lead to reasonable differences in opinion. But in other fields there are objective right/wrong answers
Booo! Everything must fit neatly in a box.
You're right but I think what they meant is essentially a facet of Dunning-Kreuger.
Most people know enough to know that what they know is a fraction of the surface area of a subject.
But some people know a fraction of it and think they have godly expertise because they can't see the breadth and depth of the field. This is often because they can't even comprehend the complexity as they simply haven't encountered it before.
Objectivity doesn't exist.
Kant, and friends.