No, cryptocurrency will only be able to take a certain place in the field of finance, and no more. The currency of states will continue to dominate this world, as states will not allow the situation to change in favor of cryptocurrency. Some states now allow the circulation of cryptocurrency, because it does not yet threaten the circulation of their national currencies. In addition, states are still looking at this new type of financial relations. But this does not mean at all that the cryptocurrency will be able to develop uncontrollably within states. States have many levers to control any processes, including by establishing any amount of income tax from any type of activity. Therefore, do not entertain yourself with unfulfilled hopes.