for bitcoin becoming a worldwide forex very first it need to have to be used more than all web site as an online payment. now the numbre of web site utilizing bitcoin grow working day by working day.and soon after bitcoin get to that it will be utilised in stores and other factors and in that minute we can say that bitcoin is a worldwide currency.it have a prolonged way to go and that will consider a lengthy time but if it continu like that it will come a day to reach that objective.