If Bitcoin would be A World power or World Currencry.
There is no difference with the Fiat Currency Right now, there are Some Country That Banned Bitcoin. But We All believe To the power of bitcoin, Continues growing until the others will  accept the bitcoin as world currency.

It's the same because both of bitcoins and fiat posession is controlled by a group of rich people, but i think the people who holds fiat right now it's more powerful because they controlled the world economy already for a long time but bitcoin is just appeared this last 2 decades.
So i think bitcoin needs more community and their rich and powerful people have to join and promote cryptocurrency if bitcoin want to be a world power as the OP said. It's a very long journey to get there.

How can it become a world power or some bullshit like that? It's decentralized and anyone can use it so I don't see how bitcoin will become that, it's not a nuke, a bioweapon or something that can cripple or destroy a country so how will it become a source of power?

Bitcoin is becoming quite very popular in this age than in the last 5years. Even without the support of every government in every country still bitcoin has the support of every trader and investor in any country. I can see that the bitcoin will rule as a digital currency in the near future and having the support of a famous athletes and known business men like Elon Musk or Bill Gates and even world leaders in every county will have a huge effect on bitcoin.

Fiat currency can still be in use but because of the increasing rate of inflation, most of people will use digital currencies like bitcoin or eth.

It is good that you imagine Bitcoin becoming the world currency but I don't think that it will ever happen in the future. There is no way for that. Because governments are not eager to accept a volatile cryptocurrency as their main currency. It is seen for especially the governments of big countries in the world. They don't want to trust a currency whose value changes all the time.

I think what you say is quite true. But instead of referring to Bitcoin as one of the world's powers, although there are still many countries that prohibit its use for transactions, indirectly through cryptocurrency trading and Bitcoin investment, some people become successful and suddenly rich. Of course this is a good thing to reduce poverty in the world. Bitcoin brings the economy of some people for the better, that's why I agree with you if it becomes part of the world's power.

I really want this to happen. I believe that one day we will pay everywhere using cryptocurrencies, as they are much safer and convenient for this. We don't have intermediaries such as banks and other payment systems. We interact directly with recipient, so nobody can stop and ban our transactions. But actually, governments can't let finances be out of control, as economics is one of the most important part of any country.

Let's not all be blown away by the promises of bitcoin and forget to see the truth. Bitcoin is no doubt a force in today's world,  but i bet any top government will officially endorse bitcoin without some hidden agenda . If in anyway bitcoin will be controlled by these people in the future, then there wouldn't be any need to clamour an era where bitcoin is internationally recognized and used

Nothing can stop Bitcoin's popularity and its value. It is evident that bitcoin is getting closer to the life of this world, more people/companies have a strong attachment to Bitcoin or cryptocurrency nowadays. The power of Bitcoin/crypto has indeed been proven to be able to embrace the world in more advanced technology and profitable direction on all sides of its advantages so far, especially in terms of helping humans.

it would be wonderful if all the governments of the world agreed with bitcoin and adopted it but it can't be easy because governments are controlled by banks and it's been happening for hundreds of years.  banks will expend every effort to get governments in their respective countries to reject bitcoin which is actually disrupting their billion-dollar business.