If we all know when the bitcoin price will fall, we will all have been rich and maybe you won't even meet anyone on the forum because we wold have been rich to come to the forum to seek information. But in trying to profit from any eventuality as it relates to bitcoin is the ability to act any time the opportunity comes, surely the opportunity will show but acting on it is another one just like you missed the earlier one, there is no assurance that you won't do same another one should surface. All I can say is to be prepared as you won't be notified.