I agree with this section, if some governments agree to legalize bitcoin and encourage many exchanges to go to their country, create jobs, engage in partner actions such as the construction of more universities and encourage courses in infomatic engineering, support industrial agriculture projects, support ICO which has a good project. and the economy of a country can be increased by bitcoin with government records being able to accept bitcoin and legalize bitcoin and impose a tax on bitcoin users in trade or investment or transactions. It is this tax that gives the government income. How a country's economy can change due to bitcoin if they do not impose tax on people who act using bitcoin in a transaction.