[Being of a mature state, Light found a lot of things ridiculous. Many a time, he had even found his own classmates ridiculous. He had found his own Note ridiculous before running experiments. However, time travel was of an entirely new level. No matter how he went over the words in his mind, this man was suggesting that he had come from the future, something so far past ridiculous that he indeed needed to rethink his vocabulary if he found it the best word.

Light didn't bother trying to think of the right one. Would he need it for the next time traveling man that showed up on his home from school?

More pressingly, this man was obviously not in his right mind and yet he possessed the Note. If he were found, he wouldn't hold up under questioning and everything Light had worked on would fall apart. He couldn't just chalk this man up as insane and walk away. He had to be handled. If he really held Light up to such high esteem, maybe he would take orders from him without too much worry.]

I'm sure you realize this isn't something that I can just accept as fact. I haven't done research on time travel myself, but I am aware of the impossibilities of it. If, as you say, I contacted you, then you should be a man of reasonable intelligence and thus should have prepared proof.

[He would pretend to humor him this much and then work it out from there. If he took it well enough, there might be hope for him. However, it if he really were ill, he would be harder to predict than most.]