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Has Bitcoin strayed too far from its purpose?
It would depend on whom you ask

For some Bitcoin is supposed to be a currency, for others Bitcoin is intended to be a hedge against inflation (digital gold) and others believe Bitcoin is a commodity, etc...
I have read that Bitcoin has followed the behavior of the markets before specially the technological stocks, perhaps this is the case?
I would not panic over this news and the behavior of Bitcoin, this is a market that has proven itself to be unpredictable and volatile, we all knew we are here for a wild ride, arent we?