It seemed that she had not so much misjudged the woman as assigned her to completely the wrong species. — Alastair Reynolds

“A splendidly inept thing,” Sylveste said, nodding despite himself.

“What?”

“The human capacity for grief. It just isn’t capable of providing an adequate emotional response once the dead exceed a few dozen in number. And it doesn’t just level off—it just gives up, resets itself to zero. Admit it. None of us feel a damn about these people.”

“I don’t know.” That was typical Sajaki; like all the genuinely clever people Sylveste had met he knew better than to feign understanding where none existed.

I was going to call it a mistake, but you could argue that there are no mistakes in war, only fortunate and less fortunate events.