Is Brainy familiar with the expression of someone who's being drowned in an ocean of information and given no breathing-space in which to make sense of it all? 'Cause if so, he might well recognise West's. Not that West's expression has really changed, per se; it's just gotten more and more overwhelmed.

He stares at the alien, probably unaware of the fact that he's shaking his head slightly, and says in a slightly desperate tone of disbelief: "This is completely and utterly insane."

But is it any weirder than being able to fly, or meeting someone who can regrow her toe? Well, YES.