1. A system for conducting financial transactions in an isolated economic environment, comprising: a non-isolated electronic financial account system based in a non-isolated environment, the non-isolated electronic financial account system comprising a first database storing information reflecting a customer account; a self-sufficient electronic financial account system in the isolated economic environment, wherein the self-sufficient electronic financial account system comprises a second database that maintains a representation of the customer account; and an asynchronous connection between the non-isolated electronic financial account system and the self-sufficient electronic financial account system, wherein the non-isolated electronic financial account system and the self-sufficient electronic financial account system synchronize the account and the representation of the account using the asynchronous connection, and wherein the self-sufficient electronic financial account system funds the representation of the account in anticipation of a funding of the account in the non-isolated electronic financial account system when the asynchronous connection is not available.