"No, not yet, I suppose." Walter reins himself in partially because of his own guilt. "I thought the same of myself when I was younger but I've been enlightened, forcibly and with great... cost."

He has to take a pause to collect himself. "It is not only what you or your company will do." Walter thought IRIS was the company he worked for. "We must be cognizant of what others might do with the paths we start."

He's very adamant about responsibility after so many years ignoring it. "I have seen my own thought experiments be brought to life by others, they are quite brilliant but they should never be. Something as simple as going to save a life, to save my son, is unraveling the universe."

Walter is sympathetic but adds, quiet, fatherly, maybe even gentle. "Have you considered that no one believes you, not because they aren't listening, but because you reject the very idea that anything you ever do might bring ill?"

Walter slumps down on whatever seat he can find. "I carry that burden. Myopic view of my own work being important and having no potential for anything so bad. I thought I was doing the world good but well, even scientists can be very wrong."