Some luck. A lot of luck, if you count being lucky things didn't go worse.

[ Realistically he shouldn't lie about that and all. ]

But most of it was just them realizing they wanted to change. Even if it took some of them, uh. A few hundred years to get to that. Alien thing. They had a lot of time to work with.

[ ... he guesses he just never thought about what else would change after everyone was done changing. Maybe that was part of his problem back home? He can always get hung up on that later. ]