The Big Fish and Von Freeman
The Big Fish swims in the Little Pond and, because he is a fish, he has no idea how small the pond is nor how small he is in the context of other ponds. When he is uplifted and thrown into a far larger pond (or a lake or an ocean) the inflated self-image shatters with the sound of Von Freeman casually stating the obvious in front of a room filled with strangers.
...that curiosity is a muscle, and most people let it atrophy the moment they become convinced they're right.