 However, the agreed acceptance of basic statements, like that of judicial verdicts, remain perennially susceptible to the requirement for further interrogation. Popper terms this “the relativity of basic statements” (2002: 86), which is reflective of the provisional nature of the entire corpus of scientific knowledge itself. Science does not, he maintains, rest upon any foundational bedrock. Rather, the theoretical systems of science are akin to buildings in swampy ground constructed with the support of piles: