3. How can bitcoin be used as a currency , when everybody just hold it as something unique on our universe? Hoping the price will go to a million? It will just be a digital asset for value store. ( and speculation of course). Unless you expect that by splitting the hard codded btc many times , will be enough for having btc in every house and the top guys being in quantrillion position
I'll comment on this one as well. Suppose gold had never been adopted by governments to backup their currency. This would mean that gold also would be decentralized, and it would have continued to skyrocket in price had it not been regulated by governments and markets. See, governments realized that such a failure on their part would have destroyed their currency, and consequently their economy. Same thing is happening with
BTC (crytocurrencies in general).
Having stated that, what I see happening is that governments will regulate cryptocurrencies, somehow. Once they are declared a commodity, a currency, or whatever classification
BTC is given, then markets and governments will establish a value in relation to fiat currency. I don't see it taking the place of cash, but it will be regulated. Consequently, I think this is what will make it more stable and practical.