well base on the bible when God's second coming there will be no more money, credits/debit cards, and maybe even digital currencies.. all through chips that can install in our wrisk and forehead... so its a yes it is really possible to replace paper money to bitcoin and other digital currencies in the near of future..there is no such possible when it comes to innovation and technology.( except the time machine 🤣🤣) ..and there is no permanent in this world except changes.. and we all know being human..we all always trying the new trends even if its for good or bad we still trying it why? because we all have freedom to do so no one can limit you ... but sometimes we need to think first if its for our good or just a temporary satisfaction...