In the last years cryptocurrency and blockchain technology have captured attention and motivated many fintech and financial institutions to experiment how they could transform the financial services industry. In addition to this, in recent years more and more CBDCs have begun to be talked about and many countries have started to develop their own, each with its own design but all with the same objective. In response to the question "What is Bitcoin?" a comprehensive answer would span various fields, ranging from economics, computer science, law, history, geopolitics, and finance, likely leading to confusion for the interlocutor, as was the case for me when I first approached the subject.