Is bitcoin necessary? may be, may be is a tool for giving a fresh air to a system that is dying, but central banks don't care about anyone less his power and his scam system that is printing money as they want, they use a paper without value just follow a scam system very old, they just say this value is that base in nothing, that system of course can't stay for long, but they prefer people be in the misery just for keeping they scam system alive, they say bitcoin is a scam but it's not a scam is a new system that many people just prefer, and like gold the price will go up just because like gold a Bitcoin is limited and very hard to create a new one, a bitcoin is a bitcoin no a paper based in bitcoin as cash is of gold, is a gold scam, probably not because is limited every time is harder to find so the price will always go up. Who says the gold is expensive, just everyone think is expensive, so bitcoin like gold have a right to survive, I hope a movement of people declare to bitcoin as value, and laws must protect what people think no what a scam system like cash money produced by banks. If the government ban bitcoin also they must ban cash and gold, because some terrorist use gold or cash to make business, come on! a terrorist just need 50 dollars to rent a van and kill hundreds of people.
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From @luck777sam