I started to be involved in the crypto currency world just this year of July and the price of bitcoin at that time somewhere $1,300 to $1,800 and I wonder why it had a meteoric rise of the price in just 5 months.  Would it will be happen to some digital coins also listed in coinmarketcap?  Is there any reasons that it was manipulated or anybody behind on how this price dramastically goes up so high?