Jack shrugged. "Maybe... Maybe it's better. Maybe I know what I'm doing and we're making a difference." He sighed, shaking his head and looking up at Scotty after a moment. "Don't get me wrong. I... There are people I have, here and now, that I would never, ever leave behind. But. I'm forever, Scotty. It's not..." His eyes hardened, and he looked away. "I don't want to think about it."