I don't know but some of my friends that bitcoin is still young then botcoin has a unstable price so when it is going up or going down it is normal. So I have to trust bitcoin right now.
That is what we should do, we cannot just say that bitcoin is dead just because its price are having huge fall, it is just normal because of its price volatility, this huge price drop are only happening when there are some problem about bitcoin's market, like this past few day, the north korea exchange have been remove causing for the bitcoin's price to collapse a little bit, for sure there is a lot of panic sellers who sold their bitcoin that time.