 In sum, the defeasibility character of Gaṅgeśa’s theory of knowledge centers on the fact that apparently trustworthy sources of information at times mislead. But in those cases it is not really the knowledge sources, perception, and the rest, that are at work but rather close imitators. Knowledge sources (pramāṇa) themselves are inerrant. This makes the concept of the apparent source central (pramāṇâbhāsa): “You can't really see John from this distance.” Awareness naturally taken to be informative is presumptively true but the presumption can be defeated. It can also be certified. Defeating and certifying belong to a second-level of knowing where we are self-conscious about justification. But there, too, we give the benefit of the doubt, bādhakam vinā, “unless there is a defeater.” In this way there is no justification regress as feared by Western foundationalists and alleged by the second-century Buddhist Nāgārjuna (1978).