There was little in the world that Loki appreciated more than genuine intellectual curiosity. While it left him with no misconceptions about the place of humans in the grander hierarchy, the smile he gave Leisha was almost genuine; the fact she reminded him of himself when he was much younger practically went without saying. There was a point in his childhood when his passion for learning became an obsession with power, when watching Thor grow stronger he'd worked harder and harder to match his strength if not physically, than by wits, magic and cunning.
Loki's eyebrow rose when she mentioned the statistic improbability of his statement, and his smile curled almost cat-like with amusement. Certainly, the fact that her mind had immediately gone towards the likelihood of his statement said a great deal about her and how her logical little mind liked to work.
"It seems almost impossible, doesn't it?" He said, bending slightly to bring himself closer to her eye level. She looked such a frail thing to him, so easy to break. He wondered how his brother did not look at them the same, what with all the force that carried in himself. "Except when you're deciding upon the possibility of something happening, or happening many times, the greatest variable is time, isn't it? Over greater amounts of time, the chance an event or near repeat of an even has of occurring increases, you understand? And my dear Leisha, I am far older than I appear. I have all the time in the universe."
As for the architecture, he thought he'd bite his tongue. There wasn't much to say about the structural integrity of a building that he either liked or found to be all that interesting (he could probably, if he so choose, bring the entire building down himself) and he knew that the best way to avoid being caught in a web of lies was to tell few. Loki imagined, as well, that she'd be more interested in what he'd just say about time, anyway.