The many-worlds theory would probably sit well enough - he'd probably dive into it rather eagerly, all things considered - but maybe avoiding an existential crisis was a good thing for someone who'd so recently had one of a slightly different sort by getting his mind temporarily uploaded into a robot. It was an interesting intellectual paradox, but it was also incredibly relieving to just feel like himself again.

"Must be a good thing for them, knowing there are so many of us here to stop that kind of thing from happening," he agreed, his tone just a little too innocent to be genuine.

So maybe don't insult the people who stop alien invasions before your robot surgeons short circuit, being the obvious implication, delivered with a cheery nod to the dignitaries who were beginning to bail on them.