I don't think digital money can replace real money because not all people in this world are using digital money. There are people who did not and will not use digital money. Governments might also block the over use of digital money but it will not happen if digital money is being legal and covered by the goverenments and the law. I think digital money is a good technology because it helps people make transactions easier but it will be just digital, you cannot use it everytime and everywhere. You need internet and digital devices like cp and pc compared to paper money, you just need your money to make transactions.