Plato's Allegory of the Cave
O — Possibility Space
The cave is a restricted space. The prisoners can perceive shadows, but not the source that makes those shadows possible.
V — Relational Change
The freed prisoner moves through changed relations: shadow to fire, fire to outside world, outside world to sun.
I — Distinction
The returning prisoner cannot transfer his new distinctions to observers who still lack that position.
Question behind the question: can an observer see their own possibility space from within?
What becomes visible: the cave is not only about ignorance. It is about the architecture of observation itself.