Generally, it says here that the relationship between monetary and economic systems is a dynamic process. There is a broad public consensus that the underlying trend is one of a growing importance and visibility of money (whether referring to as physical or digital). As bitcoin becomes more ubiquitous throughout the economy, it morphs into a self-sustained financial system, simultaneously the support and the object of economic exchanges. Its complexity increases, its transparency decreases and its behaviour becomes ever more difficult to comprehend and to predict.