"I would argue that standing alone for too long will kill a human as surely as any bullet. But... I agree, that sort of philosophic argument can wait, as pleasant as it might be." Natalia's expression does not change, though her tone does, just slightly. It seems she really does like wrestling with philosophy, even if she's not particularly great at it.

"And you're right that the constraints are important. If there were a small fellow, only a few inches tall at most, who could not breathe oxygen, how could he meaningfully interact with this city?" They both knew the answer, of course-- he likely wouldn't be able to, full stop. He'd be stuck in a pressure suit, with a radio and speaker, at best.