  Significantly, defeating evidence can itself be defeated by yet further evidence: at a still later point in time, I might acquire evidence E″ which suggests that you are not a pathological liar after all, the evidence to that effect having been an artifice of your sworn enemy. In these circumstances, my initial justification for believing that your name is Fritz afforded by the original evidence E is restored. In principle, there is no limit to the complexity of the relations of defeat that might obtain between the members of a given body of evidence. Such complexity is one source of our fallibility in responding to evidence in the appropriate way. 