Yes, most likely, in December last year, when bitcoin very sharply and most importantly, unexpectedly, began to rise in price up to $ 20,000, it was manipulation by interested parties. The consequences of such manipulation we see to this day. Given the decline in the popularity of bitcoin after such a sharp price increase and no less than a sharp drop, it is unlikely. It is able to already rise by the end of the year even to its previous price record of 20,000 dollars. Too many bitcoin holders want to sell it at a decent price for the current bitcoin. Therefore, most of all, once it starts to grow again, large batches of bitcoins will be thrown into the market and its price will fall again.