Hi there First77! Have you recently read or hear the #00000000000000000021e800c1e8df51b22c1588e5a624bea17e9faa34b2dc4a? If not so I think that is the reason why most of the people in the last two or three days have panicked and sell a huge amount of their possessions. Some say, the bitcoin system has been cracked by a quantum computer by a bunch of hackers, while other said that Satoshi could have been around and create something. While most of the people are afraid of the news, other see it possitively.  If you have seen that the sentiment of the people will about to sell, it is really better to sell ahead of time, why? so that you could buy when the price seems to go up again. It is a trading strategy.