After today's dip, BTC hit as low as 41.6K. The shock perfectly matched with the time for cash-out before year's biggest holiday. The market is now even more unexpectable after what happened today and would take at least few more days to have an overall picture of the trend and do a proper technical analysis. However, as I thought, BTC might still has a way to go down to at least around 40K. My advice is to anticipate the market movement for few more days before actually start trading, but if you had already opened one, panic selling is not the way and buying the dip is always an option.