Are you looking for the real reason behind the massive declines we've seen recently?
The answer is 2 words = Interest Rate.
The US is going to keep on raising it and investors are looking for save haven that pays sure dividends ... so the US Dollar that everyone has buried in the last decade is outperforming all the Cryptos, and soon the EUR/USD will hit a parity (it's $1.25 now, it won't stay like this for a long time).
History always repeats itself, one way or another.
No, I think it's not. I think it's because of the so many negative news out there regarding tougher regulation is the key factor in the continues dive on the price of Bitcoin and other coins. Another reason maybe is, the banning on the use of credit cards to buy Bitcoin and other cryptocurrencies, accordingly aimed at protecting users from running up huge debts from buying them on credit if their values were to plummet.