I'm pretty sure that bitcoin dropped because of bitcoin.com ceo telling people he's dumping his load and then they paniced, bought BCH instead and made others panic as well. Alt coins follow the flow of bitcoin for some odd reason. Secondly, it's holidays and people need the extra income so they're selling some or most of their investment. Thirdly, the fees on bitcoin and some other currencies are insane. I lost 100$ from a 200 dollar investment on bitcoin when I transferred it a few times, mistakes were made I guess. Why on earth would any sane person use bitcoin with those fees? The purpose of bitcoin was so that we would avoid this insanity, now it seems that the opposite is happening. Greed people using the system to their own advantage, all for the reason that there are no regulations. Now people don't want regulations on a currency, but this is the shit you get for that.