'The goddess Uncertainty was born, like Athene, from the brow of her parthenogenetic parent, the supreme god Iso. The pregnancy was not an easy one. There were conflicting pressures from the muses of physical metrology that affected the development of the embryo and gave Iso a headache. However, in 1993, after several years gestation, the new deity Uncertainty was finally born, fully armed, and intent on helping the mortals in a largely unsuspecting analytical community. News of the event was carried to the Britons by a local deity called Namas, and the headache was passed on to analytical chemists.'