This accumulated context is not simply background. It is part of the experience of the painting itself. The viewer brings to the original everything they already know about it, and what they see is partly determined by that prior knowledge. The painting that strikes most visitors as smaller than expected is not physically smaller than it has ever been; what has changed is the expectation created by its reproduction at poster scale and larger.
This dynamic is not unique to the Mona Lisa, but it is especially acute there because the painting’s fame is so global, so pervasive, and so thoroughly woven into the texture of modern mass culture. Almost everyone who comes to see it has seen its image many times before. Almost no one comes to it without prior knowledge.
The theft contributed to this dynamic in a specific way: it transformed the painting from an object that people came to see into an object that people came to see *because of its story*. After 1911, the Mona Lisa’s story became inseparable from its identity. It was not just a painting; it was the painting that had been stolen and found. It was the painting whose theft had generated the most famous art crime investigation in history. It was the painting that had been hidden in a trunk and had come back.
That story is now part of what the painting is, in the public imagination. It cannot be undone or separated from the visual object. The smile is the smile plus the story of the painting that wore the smile through its two and a half years in a Paris trunk. The ambiguity that Leonardo built into the expression has been deepened, by the case’s history, with layers of meaning that Leonardo did not place there.