Suddenly, things got bright. The side of the woman's face that was toward 
the window was brilliantly illuminated, like a probe in space lit on one side 
by the directional light of the sun. Hackworth sensed, somehow, that this was 
not a new development. Looking out over the audience, he saw that nearly all of 
them were aiming their spotlights into the bar, and that everyone in the place 
had been watching and listening to his entire conversation with the woman. The 
spectacles had deceived him by adjusting the apparent light levels. The woman 
looked different too; her face had reverted to the way it looked when she came 
in, and Hackworth now understood that her image in his spectacles had been 
gradually evolving during their conversation, getting
feedback from whatever part of his brain buzzed when he saw a beautiful 
woman.