  Given Peirce’s tychism and his view that statistical information is often the best information we can have about phenomena, it should not be surprising that Peirce devoted close attention to the analysis of situations in which perfect exactness and perfect certitude were unattainable. It is only to be expected that he would devote a great deal of attention, for example, to probability theory. Indeed, Peirce did so from the dates of even his earliest thinking. Not only, for example, did he extensively employ the concept of probability, but also he offered a pragmaticistic account of the notion of probability itself. Yet it would be a huge mistake to think that Peirce’s philosophizing about situations of imperfection of exactness and certitude were confined merely to the theory of probability.