c) Beyond the ambit of one legal system: The interactions between the legal systems of the EU, the US, and Iran with the international law sometimes result in unpredictable consequences. For example, the rules and practices adopted by the Iranian banking system are usually tested by the banking law and practice of other countries. So, a banking operation must go through an approval process in different countries before resulting in transfer of money or credit that is a prerequisite of an international transaction. During this testing and controlling processes, we learn about the limits of our very limited knowledge and experience.