Tagiri began doing this with an old woman named Amami, setting up her Tempoview to keep shifting vantage points to track Amami backward in time. It meant that except when she overrode her program, Tagiri was unable to make sense of the woman's conversations. And instead of cause and effect unfolding in the normal linear pattern, she was constantly seeing the effect first, then discovering the cause. In old age Amami walked with a pronounced limp; only after weeks of following her backward in time did Tagiri find the origin of the limp, as a much younger Amami lay bleeding on her mat, and then seemed to crawl backward away from the mat until she uncrumpled and rose to her feet to face her husband, who seemed to draw his walking stick sharply away from her body again and again.

And why had he beaten her? A few more minutes of backtracking brought the answer: Amami had been raped by two powerful men from a nearby village of Lotuko tribesmen when she went for water. But Amami's husband could not accept the idea that it was rape, for that would have meant that he was incapable of protecting his wife; it would have required him to take some kind of vengeance, which would have endangered the fragile peace between Lotuko and Dongotona in the Koss Valley. So for the good of his tribe and to salvage his own ego, he had to interpret his weeping wife's story as a lie, and assume that in fact she had been playing the whore. He was beating her to get her to give him the money she had been paid, even though it was obvious to Tagiri that he knew there was no money, that his beloved wife had not gone whoring, that in fact he was being unjust. His obvious sense of shame at what he was doing did not seem to make him go easier on her. He was more brutal than Tagiri had ever seen any man in the village -- needlessly so, continuing to cane her long after she was screaming and pleading and confessing to all sins ever committed in the world. Since he was doing this beating, not because he believed in the justice of it, but so that he could convince the neighbors that he believed his wife deserved it, he overdid it. Overdid it, and then had to watch Amami limping through the rest of her life.