 Sometimes situations can be governed and disputes settled by informal social norms rather than by positive law, formally enacted and enforced (Ellickson 1994). Opinions differ as to whether this should be regarded as something altogether different from the Rule of Law. On the one hand, it looks like a genuine alternative, and little is gained by assimilating its desirable features, such as they are, to Rule-of-Law requirements. On the other hand, it does have something in common with understandings of customary law and conceptions of the Rule of Law (like that of Hayek 1973) that try to separate themselves from enactment and legislation. Also it is sometimes said that the Rule of Law works best when what is enforced in a society can be mapped on to its members’ norms of fairness and common-sense. This makes social participation in the integrity and upholding of law more likely (Cooter 1997). The closer this mapping, the less of an investment there has to be in formal legal promulgation: ordinary know-how can become a reliable guide to legal knowledge. However, one has to be very cautious with this. Modern law is inevitably technical in ways that far outstrip the possibilities of intuitive understanding (Weber 1968 [1922]: 882–95). The best that can be hoped for is some sort of occasional consonance between enacted law and informal understandings, and the sporadic character of that may well heighten rather than reduce unpredictability. 