The answering smile comes and goes, passing once Holden turns the conversation from Amos back to the dream.

It's not a direct question. But there's a weight to it, some tugging curiosity that Ellis feels, even though he's aware there's no particular obligation to answer it directly.

"It gave me something to think about," is what Ellis decides upon. This is almost what matters more than the exact details of the dream, what he may or may not have seen. "I expect I'm not the only one who feels that way."

Based on the general level of dysfunction in the wake of the Ambassador's address, it seems to Ellis like a safe assumption.