It is calculation.

And Grace, who could not see the calculation, had felt it more clearly than anyone with eyes.

This was, in the end, the deepest thing Grace’s blindness had taught the people around her, though it had taken the wine in the face to make it visible: that sight, for all its uses, is also a kind of distraction, and that being unable to see can, paradoxically, let a person perceive certain truths more clearly than the sighted ever will.

When Victoria walked into that dining room, everyone with eyes saw her expensive dress, her watch, her practiced smile, the whole assembled costume of a wealthy, respectable woman.