Bitcoin as a world power, I think it will be difficult because there are still many people who do not know about bitcoin. They trust gold and banknotes more. Only people who dabble in bitcoin believe that bitcoin is much higher in value than gold.
gold and banknotes are real objects while bitcoin is a digital asset, it is quite difficult for a country to recognize bitcoin because it is decentralized, even though with the covid-19 they know that gold and banknotes are not always useful because they touch hands and bodies
Digital assets are the future. More and more countries will start to learn that decentralization is what everybody goes for and switching from banknotes and gold to digital currency will be the norm. Maybe not yet, but give it 10-20 years and we will be on a totally different world-one of innovation, where technology is at the center of everything.