Crypto has given a lot of changes to our modern world and its potential is still full to be opened in the whole way. There are a lot of tasks of crypto like saving of privacy, giving new working places and so on. But is it right to consider that crypto will replace usual economics because it has more advantages and potential for the future? I support crypto but I have some doubts about its possible negative future because it could be the danger for some countries that have some serious problems in this sphere.