The purchasing power of 1Us dollar vs 1Bitcoin clearly shows that one is going to zero, while the other is not.
No don't let us makeba conclusion yet on this until that time comes, but for now, let's embrace the offer we have which is the use of both altogether till when bitcoin becomes the only most recognized and acceptable currency of payment, if we are to consider the present demand and use of money in today's economy, both the digital form and fiat traditional currencies are both valid and existed altogether, but very soon, there will soon be a financial revolution that will emerge whereby all that the people will ever want is the use of digital currency for making payments and exchanges of good and services.