[McGillis assesses each shot with care, taking in the little details and organizing them into a much bigger picture—a precious camera of his own. He has no taste for any attempts at artistic flair, but he values information. And he could use this information, capitalize upon it. Particularly the curious cataloging of city limits, and the absence of light at its very edge.

And yet he doesn't look the slightest bit disturbed by that.]

It's a prison.

[McGillis concludes as much, and with confidence, after just a moment's worth of thought.]

They're caging us. And attempting to instill discipline through fear... fear of the unknown, specifically. Doubtful they could maintain order through strong-arming alone, but there is nothing human beings dread more than a world without light. It's how we're programmed, down to our most primitive instincts.