"I mean, I'm sure that would happen again eventually no matter what," Devero points out, "but I assume you mean in a much shorter span of time than the first go-around."

Devero listens seriously, and nods. Driven by a well-honed lifelong habit, he opens his mouth to try and help Senku troubleshoot the problems-- and then pauses. The absurdity of trying to advise someone from another reality while they're both trapped on an interdimensional train impresses it himself on him.

He shuts his mouth, and then says instead, "I hope you can get it figured out." He does mean that sincerely, at least.