The space part always throws Ravi off his balance, because normal people that he knows don't just go off into space, so he doesn't tend to think about that as even a possibility or an issue. The minute she says it, though, he nods knowingly, with the 'ah' of an idiot man who doesn't pay enough attention.

"Let me guess, black coffee," he jokes, but sobers quickly. "What did counteract, in the end?"