Yep! They're very certain that with the number of tech-savvy people we have, we'll be able to figure something out.

[Which he unfortunately agrees with because The Arrogance Of Genius but i personally hope they all blow up with the planet on saturday.]

I think a good number of them are in situations where they need to return home to finish business first, even if they'd ultimately be happiest elsewhere... Otherwise, I would agree! It's really best to not mess with timelines and wordlines too much, I think? Even a small change could radically alter the future, in theory.

[Like allowing the littlest mad king to be born.]