This boils down to the change of figures that reflects on the account of the buyer and seller.
When I buy stuff with my card, the number in my account reduced, and the number in the seller's account increased.
This is an evident that what we are dealing with in this technological era is NUMBERS, and not MONEY. Hence, it is a world of digital transaction with the use of numbers as currency.
Bitcoins and other coins are all shown on Numbers also.
What's your take on this?
That's how the fiat system is designed, even when we use the physical money which is nothing but a piece of paper so it doesn't hold any real value either but people's trust on it made them valuable. Technology evolved so we are now paying in the cards everywhere so hardly we need to use the physical money doesn't change the fact we don't need the money, we just need as much we used to and change of form doesn't change the fact of needing money irrespecitve of it's form.