bitcoin cannot replace currency in the world because price is not stable.
currency should be more stable.
you may reply me. currency is not stable also but you should think
USD currency price is up and down 1-2% in 1 month.
bitcoin price is up and down 20% in 1 month.
what will people think if they just change USD to bitcoin then their money down 10% in 10 minutes?
bitcoin can become stock but cannot become currency
1- Fist off governments will never give up controls of the nations currency. "Give me control of a nation's money and I care not who makes it's laws"- Rothschild
Governments spend billions of dollars every year to protect their control on the currency they have armies, media, well funded agencies and decades of experience at their disposal.
2- Bitcoins decentralized structure will most likely never be stable. Decentralized structures always have conflicts, splits, take overs etc.
3- Bitcoins are not backed by anything tangible. It is like making a tiny sea shell from an obscure island a currency, it will only be worth what people think it is worth at the moment.
Governments print money from thin air but... they also have massive armies, infrastructure, agricultural production, etc to back it up.
Bitcoin is a nice little trading medium you can turn fiat into this medium do your transactions then turn it back into fiat. As far as becoming more then that,, doubt it. Governments might take over the technology and implement it on a mass scale but they are never just going to give control of that to a small group of miners or a open source software group.
That is not the way governments work.