I want to know what you think, what affects the bitcoin price, so we can find out when to sell and buy bitcoin, because now the bitcoin price drops again 
As my opinion this situations are very normal sometimes bitcoin price pumped up so that the investor's will earn profits through their investment. And sometimes bitcoin price decreasing in order to give a chance to the Investor's to buy bitcoin in a very low price. This is how good thing to invest in bitcoin if you have fully understand the flows and process of bitcoin.