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It is challenging to say with certainty whether or not Bitcoin will replace all other currencies. A few justifications have been offered for why Bitcoin might someday replace fiat money worldwide:. Bitcoin is a "decentralized" cryptocurrency, which means that it is not governed by any one organization, be it a government or a bank. Due to the fact that it is not centralized and subject to the same political influences as conventional fiat currencies, it may be attractive as a global currency. A maximum of 21 million coins can ever be created, limiting the total supply of Bitcoin. Due to the limited supply, which might increase demand and result in a potential value increase over time, it might become more alluring as a store of value. Network effects: With a sizable user base, significant infrastructure, and backing, the Bitcoin network is the largest and most established among cryptocurrencies. As a result, it might have an edge over other cryptocurrencies in terms of adoption and use as a reserve currency. The fact that there are a number of obstacles and restrictions that could prevent Bitcoin and other cryptocurrencies from becoming widely used as a form of payment worldwide should not be overlooked. Scalability issues, regulatory uncertainty, and the possibility of fraud and hacking are some of these difficulties.
I believe that Bitcoin lacks privacy. I invest in Bitcoin and low-cap privacy coins because of this.
I don't think Bitcoin will ever replace other currencies, they will live next to each other, just like cash and cards are living next to each other.
Same as how in El Salvador Bitcoin and USD live one next to each other as legal tender, etc.