I think one of the factors that can affect the bitcoin price is bad news or FUD's that can holders sell their bitcoin because they think that the price of bitcoin will drop and the other factor is there are some group of a pump and dump that can manipulate the value of bitcoin and the other thing is there are many scammers out there that use bitcoin as their presentation that is why people didn't trust bitcoin because of this reason.
Well said mate. This is really what will gonna happen if there is FUD and scammers. Volatility of cryptocurrency depends on it's community and investors so movements of prices will follow as long as there is such thing as that. One possible thing is that investors keep on buying Bitcoin and that is how scarcity works and will make the price skyrocket to the moon. That is why we need to keep calm and buy Bitcoin.