I see this move as completely artificial. Made by a single manipulator and bots who followed him
Its part of a pattern of selling, if its fake its been elaborately done over some months now and lots of different exchanges. The simplest answer is usually the most probable to be correct, people sell because the price is going lower then by self fulfilling the trend to continue. At some point it balances out but for some period of time, people get weak hands and drop what they hold. Market has to test peoples willingness to hold, its just how it works I guess and then its done on multiple time frames.
Eventually we start to get a consensus, not just day to day but the larger time frames people are willing to let their BTC go and surprisingly its for lower prices each time. Eventually people are completely
exasperated by this negativity and start to demand explanations or explore what is the driving force. For me, the most simple force of all is just some fear that the price will go lower. Its a mexican wave of sentiment and right now its a bit negative. It can turn around, facebook or whoever doesn't really matter and there are positives out there for Bitcoin price but they are long term and it takes time. 13k was too far ahead of the curve imo
I'm already thinking it can go back to 8000, just swing right back the way it came but 7625 is the line for it to pass and hold and then its reversed that section of negative action as some start.