I don't see any proof that bitcoin is crashing nowadays and I never think of a possibility that bitcoin value will become zero. Bitcoin as a popular cryptocurrency is well supported by many big investors and users around the globe. Though bitcoin had dipped many times due to its volatility aspect but I have seen it can always recover.
well, basically, the biggest thing that makes bitcoin prices fall is the rejection that happened last month. well, that makes the price of bitcoin drop so far. well, but I'm sure there will be future price returns.