The economy determines the domestic, and, above all, the foreign policy of nations. Understanding it therefore means entering the fundamental processes of government. Words like “spread” and “tariff” are, however, ingrained into our common language, and, on more than one occasion, have determined important political choices – like in the real commercial war happening between the US and China. But not only this: new monetary systems are being created to interact with, and in some cases, even replace traditional ones. Amongst these, there are above all cryptocurrencies, which are competing even with central banks. The birth of these new forms of payment has raised many questions all around the world. For Russian president Vladimir Putin, it represents an alternative for bypassing sanctions imposed by the European Union. For some imam (but not all) – cryptocurrencies go against Islam. There is an infinite number that believe cryptocurrencies are instead just a huge scam. The conversation is, however, ongoing.